Considering that you are quite new to the game, here are a few tips to remember in replaymaking:
1. Don't rub uke all over yourself just to get dismemberments-
Lots of beginners do this, and it's good that as early as now, remember this tip when replaymaking. Rubbing uke all over yourself doesn't look good, and it looks messy, which brings us to tip number 2.
2. Make clean hits-
Making cleaner hits help make the replay look, well, clean. Seeing too much red hurts my eyes, so reducing the amount of contact between uke and your other bodyparts aside from your limbs would help get you clean hits, which bring us to tip number 3.
3. Make your hits look more well defined-
Related to my first tip, make sure that you can actually identify what your tori is doing. Whether it's a punch or a kick or a flip or a dismemberment, make sure that you can tell what your movements are when you watch your replay.
4. Make your movements fluid-
As you mentioned, you decided to use a "hold-all style" to keep balance on your feet. Though it seems to help you, a relax-all style makes things look smooth and sexy. Destroying uke in a stiff, robot-like manner doesn't look good too, so yeah, make your movements fluid.
5. Don't be afraid to lose balance-
You mentioned that you use a hold-all style to keep balance on your feet. I would advise you to not be afraid to lose balance. Sometimes, you need to take risks, and by doing so, it may bring you a step closer to making epic replays.
I hope you will learn from all this advice.
~B4CKST4B