You know, I really miss these advance-series blanks. I might use one on my next fake.
Anyway, I really like the theme you have going.
I also like how you can put the illustrations together to form a picture, just as several cards in the real TCG do.
I really like Celebi's Poke-Power. Seems like you could annoy the heck out of your opponent with it. However, it might be a little unfair. I'd use it, but I wouldn't like it used against me.
The empty energy on Spiky-Eared Pichu wasn't in use on cards until the DP set, but neither was Spike, so I guess it'll still work. Anything's possible on fake cards, anyway.
Nice cards (my favorite is Ilext Forest), but you really should add the illustrator text. I think Ken Sugimori illustrated all of these.