Have you ever wondered about the evolutions of Pokemon? There are some cool forms, but there are some evolutions that just don't make any sense. Thankfully, a Tumblr artist at In-Progress Pokemon has illustrated the "missing links" of various Pokemon evolutions. Some of these evolution designs look pretty cool.
Generation I Starters
Psyduck's Evolution
Dragonite's 5 Forms
Eevee's Evolution Missing Links For Umbreon, Espeon, and Sylveon
Snorunt's Strange Evolutions, Glalie and Froslass
The Complete Evolution of Tyranitaur
Hidden Horrors of the Ghost Pokemon
The Fascinating Evolution of Marill, a.k.a.
Mudkip's Evolution
Hardcore Evolutions of Exeggute and Sunkern
The Evolution of Slowpoke, Slowbro, and Slowking
Pikachu!