Alright, the back looks good.
Skrall armor works, too.
That's really unfortunate...
The upper legs currently aren't a catastrophe, but still they could be better, you know? I'd propose a specific design as an option, but it's your MOC, not mine, so I'd prefer your solutions.
I know custom upper legs are a pain to build, but I'd still recommend maybe giving it a few more tries and then pick what you think looks best?
Otherwise the MOC is fine currently.
Rules and list in post 1
All Makuta are currently assigned