D&D Tortle with cannon

I created a D&D Tortle character with the gattling cannon by maz3r. Still learning my way around Blender. E.g. I know now that you can't have good topology (arms & legs) by starting with a Boolean union of cylinders and spheres. Somehow the joints are always quirky even after subdividing. Next time I'll extrude/rotate/scale cylinder parts from top to bottom and subdivide from there. I also sculpted a lot more than before. Anyway, it already looks cool I think. Suggestions for better modeling are welcome.

With the mirror modifier, making a halberd / spear is a piece of cake :)