So I resized the cab and I think it looks a bit better, but I am interested in hearing your opinions on the matter. The first one is more accurate to the toy,I have been using pics of the masterpiece prime for reference. The second one to me just seems to look more proportional. I'm leaving this to popular opinion as I can't decide.
I added a third pic, I resized the legs instead of the cab per rojo's suggestions, I kinda like this one the most, as it's a little more accurate to the toy.