As I have already answered to another commenter, I do not intend to release these models for just anyone to use. They were each created specifically for their respective renders (some are even unfinished in parts not shown), for the purpose of practicing character modeling and scene composition and to pay homage to the game.
Once I feel I've done enough characters, I may go back to the old ones and make new renders, maybe some animation, and maybe, later on, I MIGHT even do low-poly versions of each one with the intention of releasing them (if I feel enough people would want them). Either way, I'd rather have the final say in the design of the models before releasing them, if I ever choose to do so.
Should you want to make your own Valentine model, using this
model sheet is a good way to start (it helped a lot with mine).