Transformers Prime: KnockOut [A3 Line Art]

I'm drawing KnockOut for my lovely friend Selinaroar, who will owe me big time for this!
Originally he'd already been drawn out and ready to colour, but I moved house and lost the original so I've had to re-draw him.
I used [link]
as reference simply because it's the first time I've drawn KnockOut seriously.

Hopefully I can get around to colouring him; if not manually then I'll just splash some digital paint on him (but I'd prefer to do it by hand).