The sculpt looks great, and I'm especially impressed with your sketching and pre-production
The feet and ankles look thin to me. I know baby elephants don't have massive feet like their elders, but they are still proportionately larger than what you have. I know you are past the point where fixing this is easy, but let me try to explain this anyways...
From what I can see from reference, it looks like the feet and ankles should have about 15-20% more girth. As of now, they look more like hooves. Basically, the foot should be as wide as it's shoulder-blade. This might also fix the problem you are having with the legs looking too long, as well
You should be able to scale things out slightly without having to re-UV and scupt and stuff.
Hope this helps.