Well, to start, good choice in picking animation. ^_^ It's pretty much the best thing in the universe.
So far I think animals are one of your biggest strengths. Your cats are cute as all get out- I like the little happy one, second from the bottom.
Overall, your work gives the impression that your in a hurry to learn. Currently you've got lots of great quick studies.
I think slowing down and doing some simple perspective exercises will help you a bunch. Sometimes 1 study where you take your time and think out problems can equal 12-15 quick studies.
Draw some simple scenes using only cubes, cylinders, and cones. Take your time and work out the perspective of your scene. Practice drawing lines across the surface of cylinders and spheres.
In your latest post your perspective lines look like you have the basics down.
Good luck with Ringling, & happy sketching.