just some fun detailing my 'chus line, and how she looked at each stage.
Her defect is being unable to use electric attacks at all. She's nicknamed 'dud'. I wanted some unified concepts across designs, but not any 1 single marking being carried thru all. She rather just has more black generally.
As a pichu she has black hands, as a pikachu black feet, then as a raichu, both, with her markings still leaning towards 'sharp', even with her final form having a slim shard of white rather than the big white belly most Raichu have!

She has always walked on her tippy-toes, since she admires Raichu and wants to stand more like one!