Update on wedding outfit :D!

Remember a few posts ago? When I was asking for help with what to wear to my friend's wedding...?
Eventually I realized that grey dress was too short and not appropriate at all for a church.
So, I asked my mom and surprisingly she picked for me one of my lolita dresses...!
We did a little brainstorming about what to wear it with and we came up with this outfit:

The dress is that one exactly, except it's more the colour of the strings of the sandals.
The sandals are almost identical, while the earrings, well, you can see them in one of my previous entries :D.
I'm not sure about that clutch, though. It feels like something you should wear in the evenings, doesn't it? Ahh, I don't know, how am I supposed to know this stuff? I never go to weddings, I never dress fancy ;_; I'm just an alternative kid who doesn't know how to match colours anymore T__T!

By the way. What do you think of this outfit? I love that dress, but it seems too frilly to me, considering the occasion... wouldn't I look like a bridesmaid?
I mean, it has everything it takes for a day ceremony in the summer: it's knee-length, it's coloured, it's quite elegant in its own way, it doesn't expose too much skin... so why am I not convinced?

And in case you were wondering, YES, my choice of an outfit IS always this tiresome XD I go on and on and on and on for days, wondering what might change if I put on that other dress or another necklace. Except I usually don't involve other people in the process XD

I can't wait to show you pictures of the wedding, you guys <3 the bride told me (she just told me, nobody else knows :D*) that she had her tailor replicate a Vera Wang dress, and that it has a pink corset while everything else is black <3 also, the decor in the church is all going to be black&pink, with roses and bows, and so her bouquet. Also, the reception's going to take place in a castle *_* that's EXACTLY how a goth's wedding should be, if you ask me.
In the next entry I'm probably going to post some pics; until then, have a nice weekend :D*!

What to wear at a wedding D:? Advice needed!

Agh...!

I knew I couldn't escape this forever. You know. Friends' weddings.
After all, I'm twenty-five now, and my friends are starting to get married. And weddings mean... you have to wear a proper dress...!
Proper for mainstream people, at least.
Well, this friend of mine's a former goth, and even now that she's 29 she still only wears black clothes and she's dyed her hair purple some time ago, so I guess she wouldn't have a problem with me showing up in a goth attire, but...

... BUT.
I'm going there with my mum, who's also her boss, and who's also the person who hates my style more than anyone else in the entire world. Also, the ceremony's going to be among dear friends and relatives, we're like thirty people in all, so I would definitely stand up if I went there full goth.
All this to say that an alternative outfit is out of question :/ and I don't even plan to "add a few personal details" because I don't like to be "a little" alternative, I'd feel like a poser (and since alternative fashion's trendy now, I don't want to be mistaken for one of those people who wear crosses and studs and stuff just because it's the last trend).

So, my outfit has to be totally non-alternative.
That said... can you still help me XD? I bet some of you have gone through my same struggle at least once in their lifetime :/ what did you do? What did you wear?
The only dress I have, that I could wear to this ceremony, is this one:

I think the colour is ok, it's a dark grey and it has a floral embroidery; and even though it doesn't reach my knees, the cleavage isn't revealing at all, so I guess it's fine.

This is me (on the left) wearing it to a completely different occasion: one of my friends' graduation last year. I wanted to keep it rockish, so I put a studded belt on my hips and I wore faux-leather leggings and rider boots; but this time I want to do something very different, I'm aiming to elegance.

So, my first doubt is: WHICH SHOES SHOULD I PICK ;_; I most definitely can't pair this dress with platform Demonias, Bodyline mary-janes, creepers or studded Jeffrey Campbells, which only leaves space for flats and pumps. And well, flats are forbidden to short people like me: I need some heels. 

These are my options:

These are my option of choice, but I'm afraid they're a bit too elegant. The dress is embroidered, so I think I should wear plain pumps... what do you think?

And I'm afraid these ones are "too much", too. The heel is very high and I think they're meant for an evening.

The shoes I actually own have two t-bars, but they're pretty much identical to these ones.

But I have a feel that they'd fit a vintage outfit better, and that the occasion requires a higher heel.

... I don't know. The colour seems too bright to me, I don't know whether it goes well with that shade of grey or not. Also: a bit too "diva", don't you think...?

And then I have my oxfords, but they're not the right shoes for a dress like that.

And shoes aside, I have more doubts XD:

-what should I match it with? Accessories? Bracelets? I shouldn't wear necklaces with that dress, right?

-is it ok to wear it without leggings to a church? Or to a wedding in general?

-should I add a shrug? Since I'm in a church, I don't think it's ok to go there in my bare shoulders D:

I have no problem with the hairdo (I'll just iron my hair) and the make-up: I'm planning to do a simple, nude make-up with my Naked. My problem is matching clothes that aren't black XD!

Can any of you help me? Any suggestion would be more than appreciated X°D.