My version of Classics Megatron:
Incredible Hulk Abomination redo:
A fantastic villian from the Tick, Chairface Chippendale: (very old, first real kitbash and used Testors paint at the time)
I don't have original ref. images but these are 2 Darktroopers I repainted. One it's general toy colour with added detail and the other a black variant: