i tried both of the the files, cura and meshmixer both see them as very small. WIth the 20% infil they are spliting at the feet and neck when i am cutting the support off. i think a higher infil wiil sort alot of things out. i am just getting to grips with meshmixer, so mr elf is proving a useful test subject ! are you printing him on his back or standing up? it may explain his orientation in meshmixer. your prints look higher quality , are those at 0.1 layer?