First one: ooookay... letting that one slide for now.
Second: If you ever do a job with animation and they see that. They’ll look at it and say. WHAT THE HELL IS THIS! It crap! trust me. I have been there! If you consider that nit picky of the animation? Sorry to say it. Not being mean or C but it real cuthroat out there. They want the best!
Third: Helping the animator in the areas that REALLY needs the help is a big thing. If he or she was going to use this animation in a demo reel, thrust me, they well garbage the Tape.
Now, back to the model itself.
You got the telant like I said before. Great Model..
Kingnor! you got yourself a great start of an awesome model. Truthy, I'm Jealous. Check your Keyframes. I don't how it works with Lightwave but I believe it almost like XSI. See if you have a animation Mixer or something that you can control the animation itself. Play around with it. Some fine tuning would help with the jumping. As for the polygon, I'm thinking you could have and extra poly in that thigh. You should double check that.
Good luck and keep up the work! I want to see MORE!