I like the 2nd one. The colors goes nice together somehow
The first one is suffering from having the sun almost directly against the position from where the shot is taken. HDR probably wouldnt help here, since taking 3 photos without the lamas moving could prove challenging. But you could always try of course.
Another option would be flash, but a lot of animals don't like that, so that might also prove to be a bad idea.
Basicly the best solution in that case would have been to get on the other side of the animals, if possible.