A single-image transformation picture I commissioned recently from Drpickelle over on Furaffinity. It’s my female sona, Petra, turning into Captain Celaeno - turns out that cosplaying as your favourite character can have some pretty awesome side-effects!
 
The crystal pegleg forming was talked about between me and the artist - we were trying to figure out how we could have it forming without going into body horror territory, and she suggested having it form around the lower leg, and it worked!