I think Piccolo's transformation should go something like this, juss for a bit of eye candy and a feel of an actual change
form 1: Piccolo with weited clothing (turban and cape)
form 2: Piccolo without it
form 3: Piccolo gets all bulked up with more muscle
form 1: Piccolo with weited clothing (turban and cape)
form 2: Piccolo without it
form 3: Piccolo gets all bulked up with more muscle