All 150 of the original generation Pokemon from Red, Blue, Green & Yellow. I sketched these guys across 20 and a half sketchbook pages (yes, a half of a page that was ripped down the middle) as well as a 21st page for the picture at the bottom with the Pokemon trainer.

Bulbasaur, Ivysaur, Venusaur, Charmander, Charmeleon, Charizard, Squirtle, Wartortle, Blastoise, Caterpie, Metapod, Butterfree, Weedle, Kakuna, Beedrill, Pidgey, Pidgeotto, Pidgeot, Rattata, Raticate, Spearow, Fearow, Ekans, Arbok, Pikachu, Raichu, Sandshrew, Sandslash, Nidoran Girl, Nidorina, Nidoqueen, Nidoran Boy, Nidorino, Nidoking, Clefairy, Clefable, Vulpix, Ninetales, Jigglypuff, Wigglytuff, Zubat, Golbat, Oddish, Gloom, Vileplume, Paras, Parasite, Venonat, Venomoth, Diglett, Dugtrio, Meowth, Persian, Psyduck, Golduck, Mankey, Primeape, Growlithe, Arcanine, Poliwag, Poliwhirl, Poliwrath, Abra, Kadabra, Alakazam, Machop, Machoke, Machamp, Bellsprout, Weepinbel, Victreebel, Tentacool, Tentacruel, Geodude, Graveler, Golem, Ponyta, Rapidash, Slowpoke, Slobro, Magnemite, Magneton, Farfetch'd, Doduo, Dodrio, Seel, Dewgong, Grimer, Muk, Shellder, Cloyster, Gastly, Haunter, Gengar, Onix, Drowsee, Hypno, Krabby, Kingler, Voltorb, Electrode, Exeggute, Exeggutor, Cubone, Marowak, Hitmonlee, Hitmonchan, Likitung, Koffing, Weezing, Rhyhorn, Rhydon, Chansey, Tangela, Kangaskhan, Horsea, Seadra, Goldeen, Seaking, Staryu, Starmie, Mr.Mime, Scyther, Jynx, Electabuzz, Magmar, Pinsie, Tauros, Magikarp, Gyarados, Lapras, Ditto, Eevee, Vaporeon, Jolteon, Flareon, Porygon, Omanyte, Omastar, Kabuto, Kabutops, Aerodactyl, Snorlax, Articuno, Zapdos, Moltres, Dratini, Dragonair, Dragonite, Mew.

...where's Mewtwo!? Already drew him. Also, when it gets down to it, wouldn't logically Mew be the 150th and Mewtwo would be the 151st, since he was a clone of it? Yes I know it's more complicated than that, but just humor me. ANYWAY, so yeah worked for quite a few days on this one, photoshopped it all together last night and finished it today. The quick illustration at the bottom is the most amazing thing in the world, but it's probably the best Background graphic I've ever done...need to try more of that. Maybe someday I'll do the 2nd Generation when I get on a Gold/Silver kick, we shall see.

...STILL Gotta Catch 'Em All.

EDIT: Removed the bit at the bottom because it looked too nasty. Ah well.