Hm, I'm not a spriter so I wont be able to help you. I'll note some other things though.
I know you're French like you said, so I wont Nazi all over you, but the title, I feel, is important so I'll point out that Forgot should be Forgotten.
I feel that there's strange about the kanji, though it may be just me. There's a rather nice ring to it though.
Also, I'd like to point out that you really shouldn't ask for programmers in a fan game of your own creation, unless it's some huge project that requires a lot of programmers to do certain aspects of the gameplay such as the engine, battle, scripted events, etc. RPG Maker is simple enough that you should be able to learn it rather quickly. The more you do stuff on your own, the more control you have. Then you wont have to start cattle prodding when your workers start losing interest. If you do it by yourself, then it's just a matter of how long you retain interest in your own project. Although it is nice to have a good friend as a partner, so both of you will remain motivated.
In that regard, what are you doing in this project? As far as I can tell, you're only doing the character portraits and the storyline, though correct me if I'm wrong. The programmer needs the storyline to start programming the game, so all that you'll have left to do is character portraits. And once that's done, you'll be done with your work while "your" project suddenly just gets thrown onto the back of someone else to do the main hard work.
I suggest that you learn RPG Maker if you're interested in this. Like I said before, it's not that hard. Especially with whole communities out there that supply sample effects and ready made game engines. Then its just a matter of using those as reference to make your own.
Well, that was a long post. However you decide to do it, good luck.
Oh, and I like the effect you put on 東方 for the title card. The other four kanji look rather boring with just simple flat colors, so try and put that same texture(with the different colors) for those other four kanji as well. It might look better. Unless you like it that way.