This is my week 1 assignment for Ashleigh Warner's CGMA Creating Stylized Game Assets class! All of these together took me about 5-6 days to finish in my spare time after work.
All cubes are diffuse/hand-painted color only, no lighting or other maps.
The first cube is a rococo/18th-century style jewelry box, the second is a fruit gift basket, and the third is a Borderlands/Ancient Eridian-inspired box.
I used Maya to model and UV the cube, 3DCoat and Photoshop to texture, and Marmoset Toolbag 4 for screenshots.