After comparing to the CG renders and the final product photos Titans Return Titan Master Loudmouth, I just realized that there is something wrong with it: His upper portion of the legs is mis-assembled. However, you can fix them by (lightly) knocking off the pin, reversing the legs, and re-assemble it back. (pictured below.)
Does look better after your fix. You might be right about the misassembly. I can't check out my Loudmouth because I'm into some customs with these little guys and already swapped pieces around. But I did take a look at Goshooter that came with LG-29 Wheelie, and who is a repaint of Loudmouth -- assembled the same way:
The problem I am having with Loudmouth, is that the back of his head is solid, and it is keeping him from being used with some larger figures. I couldn't even get him to attach to Hod Rod.