Nice♥ This comes pretty near to what I imagine her to look like in my FF. Although I would have her use the Stars Season transparent sleeves (or none at all) and the Symbol would've been on her choker, not on the brooch.
Yeah, something like this: Super Sailor Mercury Crystal OMG I'm melting away! I somehow like it that he draws her mouth a little 'crooked'. Makes her appear like she's doing a cat smile (It's tiny but it's there).
P. S.: Am I the only one who has a certain clue from the OST stuck in his head if he sees this?