At last, a goat thats safe from Helm! Excuse the in-joke and welcome to Pixelation LaserBeing!
The first one is alot better. I think this is because the crotch is correctly placed. Once you added pants, the crotch has moved to the left so the hip bone is angled impossibly relative to the upper body. Another problem is the shoulder armour with the spike coming out. I find it distracting because the spike lines up with the horn. Also, it hides part of the head making it harder to figure out we are looking at some sort of goat human.
With all pieces, the arm seems poorly positioned - like it is too short and not bent right. Basically, if you can't 'act out' the position yourself, then you need to change it. If the arm is bent towards us, then you need to work on how you drew the elbow i think to better convey that.
Goodluck!