Well, for starters, I wouldn't do two versions. That's a marketing gimmick the main series has in order to coerce people into buying the same game twice.
And secondly, if this is your very first hack, I wouldn't recommend diving into making your own thing all by yourself first. Find another hack that needs staff, discover what you're good at (it looks like you could be a good spriter if you practiced some), get some experience around what you should and shouldn't do first before starting into your own project. That's my advice.
Also: "Pokémon" (or simply "Pokemon" if you don't want to bother copypasting the é, but it's on every page in the forum so why wouldn't you), not "poke'mon." That's kind of a pet peeve of mine. It's an accent, not an apostrophe.
Oh, so now you're soliciting random feedback on your hack, is that it? Well, ok, sure, but does it have a thread or anything that you could link me to? because I seriously can't remember/find anything.