Found a cool Fantasy Mech on CGTrader so decided to mimic it in Tinkercad to a degree and add my own spin on it. The side guns are taken directly from the original stl (though I augmented it a little) and then created my own design based on its general shape. I think mine definitely looks like a heavy mech compared to the original (see link below).
I did piece-meal a bunch of bits from other thingiverse objects (see Remix list for attribution), which means if you see this in you list of derivatives then I used at least one of the files in your object as part of this design.
The legs were designed to be articulated as well as the lower arms (though it may be quite limited with the underlying cables). The guns were also designed to be positional.
I am currently in process of printing this out while posting this and once it is done I will post a make of it. I did confirm that the final sliced version isn't missing anything compared to the original (using Cura 4.0 with the Fine setting (.1mm) and I am using the tree supports with a raft.