Great game so far, excited for more updates. Sissy stuff isn't for me but the art style means a few modifications in photoshop to a couple of images in the Eva folder is really easy (in V0.13 at least!).
Good question, I think I was just curious and liked the style. I have a bit of a scattergun approach to trying games, try lots but don't stick with many. Quite a few have different routes, with sissy being optional, or you start male then are immediately turned female for the rest of the game, so in my mind it makes no difference.