Y'know, it might just be bad habit, but no matter how hard I try, I subconsciously draw everything with large eyes, like in any manga/anime. This is why Koishi is one of my least favourite, yet still one of my favourite Touhous.
Also, if you make page (9) of your sketchbook dedicated to Cirno, but make the Cirno a male. It was kind of a (9) move on my part.