Well... yes, I could. But there's like 150 of them. :P How many animations are we talking, dude? They're fairly time-consuming to make.
And essentially, yep, that's correct, I'm currently just keyframing your GIFs so that each frame is a 'scene'. There's more advanced stuff to do with opacity and tweening (Google 'em) that. I can do if you need it, but at the moment there's not much of a need and it's easier to manually create every frame. :)
A couple things, though: when you're sending me the base files, it's much easier for me to get started if I have a clean slate to work on. (For example, in that Charmander one, I had to go in and carefully erase both Pokémon from the backdrop before I could animate any movement over the top.) I assume you're using Paint? If so, just Ctrl-A and paste a screengrab of your backdrop beforehand and send me that along with the poses you want. Much easier. :) Also, it'll take you forever to recolour the Charmander poses if you're not in Photoshop or something with a Select Color Range tool, so just do one and I'll take care of the rest. :) Oh, and finally, if you're changing little things like the colour of the tail flame, please let me know first! Otherwise, moron that I am, I'm liable to think it's a mistake and go over the top. D: I'd rather not do stuff twice if I have to, lol.
I'm off to bed now, dunno what timezone you're in but I think it's different to mine. :) later dude.