Thanks and:
1. How to resize entities including their hit boxes.
2. How to edit textures/terrain (color, patterns, etc.) in unity and gimp, then put them back into the asset files.
3. How to add emission and light to said textures, terrains.
4. How to adjust the polygon count on entities.
5. How to entirely re-skin entities adding things like emission, special asset store effects/particles.
6. How to adjust animations for entities
7. How to create Cut-scenes and play them in game.
8. How to create hi-res custom Icons for items.
9. How to add custom effects/particles/weather effects to biomes.
10. How to change the sky color for specific things (ambient, horde night, biome, etc.)
11. How to take a Unity asset store Object (say a tool chest) and re-texturing it, improving it's art, lighting, etc.
I have a lot more, these are just off the top of my head.