I don't know if I qualify to critique you work, but here goes I love it, your capture of the goat nature is really good.
Of things to consider: -The composition, to catch more attention for this wonderful piece, you could try to select one of the goats to enlarge a bit. I find that it's a good way to catch the eye and draw in the viewer. I would select the one i the top left corner- make it take up at least 1/4 of the composition. -The goat in the middle on the rock seems to be tilted a little to the right, you might consider rotating him a couple of degrees.
All right, I gave it a go- I hope you can use it. Thank you for sharing Maria