Robot hitting things

I was invited a while ago to contribute to the Metal Man Project. It's a fun project doing a 'grown up' version of a childhood creation, there's a lot of goofy charm which I thought I'd have a go at trying to capture.
I like reading 'process' stuff, so here's mine.
The pencils involved a ridiculous amount of redrawing. I do this far too much at the best of times but MM was harder purely because it's such a simple image (the perspective on the crashing fist was tricky, hopefully it looks like a huge but not stupidly so) and it's amazing how the smallest alteration in a line can change the look of a drawing. Seeing as I still just use a brush to ink this stage is straightforward. Freehanding circles in pencil and then inking them with a brush is insane, but I did it anyway.
There's nothing fancy with the colouring, I used one layer to put down the base colours and another layer for the shading. I'd like to be able to copy just the linework into another layer so I can mess around easily and erase or recolour, either Coral Painter doesn't do it or I haven't figured out how yet. I recoloured some lines (as I did with Axel earlier) by drawing over the top of the black line, this isn't ideal and there's areas where it shows, but it does the job I guess.... hope.