Yes, I'd have to agree.
Your lower leg is good, base of support and back are perfect.
Two tweaks to help you look even better:
Angle your stirrup iron across your foot slightly, so the outside branch is touching your little toe and the inside branch is right on the ball of your foot. In the first pic your toes are out slightly with the effect of rotating your leg off your horse. Keep your toe at a 45 degree angle or less.
I can't be sure from the pics, but you may even have your irons on your saddle wrong or your foot through the wrong side. The twist is the stirrup leather should lie flat against your leg.
You are not interfering with your horse in any way with your reins long and releasing a few inchs in front of the wither. However, you'll look more polished if carry your hands down below the level of his neck rather than floating them above the mane. You'll also need a different release for when you progress to larger fences. I'd recommend you shorten your reins two to four inches and press your knuckles into the meaty part of his neck 2 - 4 inches forward of where they are now. I love the way your horse feels free to use his head, neck and back in the air and I wouldn't want to do anythign to interfere with that! There is no need for you to go back and do an elementary release with hands 1/2 up the neck since you're othewise so solid.
Your horse is just stepping over this litte fence without making a big effort, but he looks pleasant, calm and interested in his job and you look happy and confident together.
Again, really amazing form for a self taught rider! Keep up the good work.