As others have already pointed out here: your art is wonderful. I do not want to give unsolicited advice, so please take this simply as a friendly thought, but I would genuinely love to see artwork of this quality in something larger than a very simple visual novel.
I do not know whether you want to grow more as a game designer or as a programmer, but if I may gently suggest it: it could be worth finding a team that really values your talent, so you can focus mainly on the art and leave some of the other work to others. If, as you mentioned, you made these illustrations in less than two days, that is seriously impressive and very valuable.