Just doing some work on my Final Fantasy 14 based Hingashi Cannon model, did a ton of work on this today but I am 100% going to be redoing those wheels.
I also think the there are some sizing tweaks to be done with the frame, it needs to be larger while the back braces/legs should be slightly shorter to match the reference better.
ALL IN ALL THOUGH, more progress compared to my "Ironsong" model.
You can see the master WiP project here: https://www.artstation.com/artwork/lVR0Jk