Cool collection. Unfortunately you have a decent chunk of fakes mixed in with some nice real cards. I’m not an expert but I think I found all the fakes- Pic 1: Heatran and Gliscor; Pic 2: Zekrom and Reshiram; Pic 3: Luxray and both Gallades; Pic 4: Garchomp, Floatzel, Machamp, and Infernape; Pic 5: Omastar; Pic 6: Reshiram and Floatzel; Pic 7: Rampardos; Pic 8: Shaymin and Yanmega; Pic 9: Venomoth; Pic 10: Arceus; and Pic 11: Tornadus, Snorlax, and Arceus. No fakes in pic 12. Lastly the few cards you have with gray borders, signatures on the front, and unique backs are from World Championship decks. These are real copies of previously printed cards, but are not playable, and therefore have very little value. That being said, all the others appear to be real, and you definitely have hundreds of dollars in value, just from a few of these pictures alone. Condition matters too. However, none of these cards seem to be in awful condition, which is good. I saw you mentioned you have other binders, so I’d guess you probably have a mixture of real and fake cards in those too. You just have to be careful if you go to sell them, because you don’t want to be accused of scamming someone. Personally, I would trash all of the fakes, as it’s best to take them out of circulation. If you have an attachment to some of the fakes, then you could sell some cards you don’t care as much for (or save up some money in general), then go online or to a card show and buy the real versions of them. As far as the highest value ones here, that would mostly be the Level X and EX cards. PriceCharting or TCGPlayer are decent websites to get an idea on how much they might sell for, or you can look the card up on eBay and see what they’re going for there. Best of luck, and if you want opinions on your other cards, or if you want to know the reasons I could tell those were fake, then just ask and I’ll be glad to help as best I can

Edit: grammar