My net is really shitty at the moment, so I can't really open everything up and look at it one at a time, so there's only a couple of things I'll say at the moment.
1. Have a look at how to wear wigs properly (I need to do this too. :P ), as in a few of the thumbnail shots I can see your hairline under the wig.
2. The devil is in the details. Any great cosplay has fine details that could be easily overlooked, but shouldn't be. This comes down to things like making sure you've got makeup that suits the character you're cosplaying, as well as making sure you colour your eyebrows to match the wig you're wearing.
Actually, eyebrows are one of the big things that betrays the fact that you're wearing a wig.
Cosplay really allows for more dramatic makeup than what would be used in an every-day situation, and it also helps in photographs.
From the quick look I had, your fabric choices are pretty decent.
Can I ask, the tattoo on your chest I can see with Princess Chibiusa, is that a real tattoo, or part of the costume? I'd definitely suggest getting tattoo concealer if that isn't part of the costume.
Soyeh. More dramatic makeup, match your eyebrows to your wig, and I think also work on your posing.