Your ability to produce artwork. Be it sculpture, painting, carvings, drawing, etc.
0: You have no skill at communicating your thoughts through artwork.
1: You can make drawings and wood carvings.
2: You can make paintings and stained glass.
3: You can make granite sculptures and tapestries.
4: You can make marble sculptures and scrimshaw.
5: You can make elemental sculptures and living paintings.
6: You have set the expectations high and created your own personal form of artwork.