very nice
great start i do have just 1 or 2 things to point out. 1. your belly button is 1 ab crease too low. move it to the higher ab crease you could also smooth the lowest rib crease on both sides of the belly button so it wont look like you have 4 abs there. just abit, not too much. 2. above the highest ab you have the rib cage but it looks like it's a muscle not a rib, it should also continue all the way down on the side and not just stop next to the highest ab. 3. the distance between the pectorial and the first rib is perhaps too much, you shouldnt see another rib above it, the pectorial should cover it especiall in such a strong physique. although some ppl do show the 2nd rib above it, usually on skinny models. fors his back: 1. the romboid doesnt connect to the trapezius, it should end below the trapezius. and the...damn i forgot the name of the "tail bone" and that bone structure between the butcheeks.. that thing does stick out next to the cheeks but it goes inside above that and below the romboid, it sticks out again in the higher part of the trapezius all the way to the neck. are you using pierre's wolverine model as reference? he stylized his figure and also he is weating a suit. you have a naked body. i wouldnt do it like he did it if i were you, he has a lot of areas with anatomy issues. otherwise, great job.
