It looks like you did a lot of good improvements to your previous version!
Because you want to improve the dice for later, I will be picky so you have lots to work with. This is all my opinion, so take and leave what you want:
- So, I think the camera following all the dice through the tower is a little weird. I'd rather watch them go in on the top, and relatively quickly rotate down to watch them pop out the bottom.
- Upon re-rolling, I would love to see the dice swoop up to the top of the tower.
- Oddly enough for me, I wanted to select the dice to keep instead of selecting the dice to re-roll. I would like to see the dice selected to be kept to be instantly set on the table next to the dice tower.
- Don't make me enter the nothing selection of "Keep all the dice" when I have no more re-rolls available, just move on to the scoring selection.
- The music is nice.
- The dice tapping against the inside of the tower gets old very fast. Perhaps a single sound recording of "a bunch of dice falling through the tower" played once per roll would do you better. Ideally you would have a few different sound files to randomly choose from for each number of dice thrown, to keep the sound fresh.
- The bouncing around takes a while, could you make gravity happen faster? or make it more interesting by having a clear/tinted front of your tower so I can watch them bounce around.
- A selected dice looks too similar to a non-selected dice, maybe light it up or change the outline, or add a check mark or something?
- A selected dice hovering up does not bring it's collision box with it, so to de-select the player needs to click under where the dice used to be.
- I would love the visuals of the saved dice to look like the shape the dice was, as opposed to all of them being square.