A few things I think would make this pack a lot better:
- Number buttons
- F1 - F12
- Maybe remaining numpad buttons along with numbers?
- Mouse side buttons animations, most mice have at least two side buttons.
- Mouse scroll wheel with up / down / press animation
- Mouse movement. Maybe something like slight wiggle with arrows in all directions. (not sure how to indicate this, but good to show you can aim with mouse)
Personally I am currently using another pack from itch but it lacks mouse which I use for my game, so this pack would defininitely be an alternative if it got some more mouse animations.