I really like the work you're doing here. And if you put down some time and effort you could probably be someone that makes some of the best maps for this game without a doubt. I hope to see some more intresting things from you.
Not sure where you got the textures from, but they looked extremely nice. Not to mention the good work on the pride rock.
To be really honest, you shouldn't care too much about the copyrights. People just make mountains out of pebbles when it comes to that subject, you're just as free as anyone to make a pridelands map if you want to. Could be good if you throw around the words slightly maybe such as names. But you do not really walk over any copyright rules/laws just because you make a mesh or area looking like something taken from a movie. And just because someone else is making a pridelands map, doesn't mean you can't aswell.
Keep up the good work.