What absolutely gorgeous pictures! Norman looks like a gem
You look like a lovely rider, but just a couple of things that you may find useful...
The major thing is relaxing.
Relax your shoulders. Stiff and tense shoulders make for stiff and tense arms, which follow though to the bit. Bring your elbows in closer to your side and just let your upper arm and ebow drop from the shoulder.
Always remember thumbs on top with your hands, like carrying two full glasses. If you roll them in the glasses will spill (well that's how I like to remember it hehe)
Relax your lower back. Try to rotate your pelivs forward (from the bottom, so NOT sticking your bum out, but the opposite). This will relax your entire back and get rid of that 'stiff sawy back' you so often see in tense riders. It will also seat you deeper in the saddle, allowing for closer contact, more feel, and I personally think, a more comfortable ride.
And finally, you seem to be gripping with your knees. This is whats dragging your heal up. By sitting deeper in the saddle (rotating your hips) you should find that you wont need to grip or 'hold on' with your knees, and your heal will naturally drop.
I hope that helps
I'm by no means an expert, but these are things that I've found have helped me a lot!