He's more proportional than most people I've seen at that height. Especially in the picture on the left, when in motion, you could easily say to someone " he's 5'9"-6" " and they'd believe you. His proportions are not weird at all.
Check the blue line on the left - that's his subischial leg length. In the average person their subischial leg length is 47% of their total height. Taco has a close ratio to that.
That left picture is not accurate to measure his subichial leg length as he is bending his legs a lot, so you dont really see how long they are and how much they constitute of his whole body length.
He has a shorter torso for his total height compared to most people i know at around 5'9 all the way to 6'4. most of the people shorter than that have even longer torsos percentage wise relative to their whole body. I think Taco looks similar proportion wise to other giants at 7 feet and up.
Im not saying he looks unproportional, especially considering he is black (black guys have shorter torsos on average compared to other races), but he has longer legs compared to his whole body than most LL patients i have seen. After i am done with my lengthening, my proportions will still be "better" than Tacos, ie I will have a longer torso in relation to my whole body height, and i will be 5'10 when im done which is in 2 weeks.