Slowpoke, Slowbro, and Slowking

Ponyta and Rapidash

Geodude, Graveler, and Golem

Tentacool and Tentacruel

Bellsprout, Weepinbell, and Victreebel

Bellsprout in-progress

Victreebel in-progress

Weepinbell in-progress

Machop, Machoke, and Machamp

Machop in-progress