You sure look good to me. Your shoulder/hip/heel alignment is almost perfect in that first pic. Your butt is just enough out of the saddle to show that you're allowing your horse to do the jumping. It looks fantastic to me. I'd kill for your position. Your heels are so far down, it looks like you're double jointed.
The only thing I see of concern is that last pic on the flat. Your hands are low and the line from elbow to bit is very broken. You're nowhere near that position that some riders take to wiggle the horse's head down, but just wanted to call your attention to it.