Personally, I like the first one better.

I can't comment on technique, as I am not good enough to do so.

I can comment on composition, but keep in mind this is rather subjective; meaning I could be totally offbase. I think the composition could be improved a little. I don't think the Chital that is drinking would be drinking with the two tigers so close. And I wouldn't guess that the tigers would have their mouth open, yet. If they did, it would be a warning growl that would be noticed by all Chitals. I could see the Chital still drinking if the tigers mouths weren't open, but even then I would think the tigers would have been detected by all, especially since the other two definately see them.

I do like the picture though. It has a lot of promise. This is the type of pic that I try to do myself, but usually don't do as well!