Hey mate !
Beside visiting this site for years and playings hackroms for even more, i don't often post there, and i definetely don't post on hack thread without demos.
However, your game is looking very original and if you manage to put it to the end, you probably will be remembered as one of the best romhack, seriously.
You are doing a lot of efforts on the graphical aspects. Your creatures basically are not really "fakemon" but hey, they look great and better than other fanmade sprites in general.
I kind of had the idea of a sort of mixing between zelda and pokemon, so you're interesting me furthermore. Unlike if it was my game, i would have chosen to keep the good old real monsters from GameFreak and do a story and HM moves more like Zelda.
But nevermind, your choice is a cool way of mixing the two too; but please don't psyduck with the dongeons.
Dongeons are a bit important in Pokemon, and are a very fundamental part in Zelda games. But with the first being a turn-per-turn RPG, the second is more an action game. And man, that difference is felt in dungeons.
Pokemon and Zelda dungeons are very different kind, and i think you should not either do it too Zelda-ish nor too Pokemon-ish. Since the battles are basically Pokemon battles, maybe you should make the dungeons more like in Pokemon game, with a taste of Zelda ? I don't know, but you really have to work this out !
As of the videos of your project i have already seen, i would say that the battle music doesn't sound very epic, but the universe you already have works really really well in the overall.
Sorry for bad english, i'm a froggie !
I've seen that you don't want help for graphics, but i have some experience, so if you change your mind, don't hesitate !
Keep up the good work, this project is very promising.