I would say... Don't change a thing! It's super cute as is. I love the primary color effect!

I think it's perfect. The only thing that bothers me a little little bit is the waterfall in the back. I don't know where it's coming from exactly, so it doesn't really make sense.
BUT nothing has to make sense. It's good. Don't change it.

Don't change a thing. I rather like it.

Was there any purple swimsuits is my only thing. otherwise its awesome :D

I think you should maybe have a more homely and less outdoorsy background?

Don't change a thing. Your avatar is simply stunning and you use that hair well.

i second Shadami's comment about a purple swimsuit, as it would be like a version of the purple dress. otherwise, leave it!

I don't really know what you're going for with the moustache and eyebrows but don't change a thing, you look smashing.

Don't change a thing. It's amazing.

Don't change. The only thing it could possibly need is some blue at the feet, but nothing that would perfectly fit as a small accent exists.

I know you can't do anything about the sash and skirt clipping so don't change a thing

Don't change a thing. She's amazing.

I recommend a different belt. The current one looks off with the rest of your elegant, formal outfit.

Don't change a thing, you look so regal and elegant, and just dang well themed.

Don't change a thing. It's a great cosplay.

Ayy. You look great! I like this belt a lot better. I can't think of any more changes, unless you wanna spruce up the background a bit.

Don't change a thing. Your face and the background look amazing!

Two things; one this needs some sort of floor. Two I don't get the cloud background. Your avatar, to me, looks more like it should be in a jungle/forest setting.

I would add some navy accessories. atm your mask is standing out a lil bit.

I wouldn't change a thing. I wish the glow showed more around your head but as it is I love it. There aren't those jewelled foot things in silver are there? those would look great

Don't change a thing. It tells a story to me.

i wouldn't say you need to lose an item, but maybe something dangling from the ceiling would make the look more complete. it doens't need much, it's very nice

oh my god... I wouldn't change anything... Except maybe I wish I could unsee this avatar. Good concept, good execution, but I am scarred.

Don't change a thing. It's awesome and amazing.

Perhaps you could add a suitcase or some other traveling bag to go along with the train scene?