I originally painted underneath this inked in sketch just to see what I could do. Apparently, not so much. But I did consider one thing: shadows are a good determinant for edges. This could also be considered my first ever lineless artwork.
Done in SAI on yesterday's stream (because my tablet and CSP wouldn't cooperate until I rebooted my computer).
Artwork © 2016 DatFMCobalion18
Pokémon © 1995-2016 Nintendo/Creatures inc./GAME FREAK