Yunzo-san, thank you for maintaining and creating this website.
I have a suggestion for the classification of artists' submissions: The addition of genre (the current: GW, GM, sw, and sm) is great, but it does have room for improvement.
First, I would like to propose adding classification such as （巨大化 or 縮小化) to indicate process on top of the current specification, so that readers would know whether a "giantification" or shrinkage process is present. Second, would be what hearthiel (十六夜) is doing: adding the kind of content, such as violence or gentle, into his stories classification.
I'm sure these additions (or possibly) more could make the site more enjoyable. Then tag features and searching these tags could be implemented later.