Goal: To Be The Master of the Brush .

Start with One Sim.
Make the Traits whatever you want.

Starting out:
Make sure your game is set to play on normal lifespan.
build or move-into a pre-made house ( no cheats).

Rules:
1. Don't use Extra Creative LTR.
2. Your artist may move-in with another Sim or marry.
3. Cheats and mods are allowed, everything except for cheats and mods that will aid in completion of the challenge.
4. Custom Content is not allow, except for from the EA store, and reasonable price items (NO $5 ITEMS).
5. Sim must max. out the painting skill.
6. Sim must paint a portrait of someone outside the house.
7. Sim must paint a still-life painting.
8. Sim must paint a memorized Scene.
9. Sim can't paint any small paintings.
10. One painting must be brilliant.
11. One painting must be a masterpiece.
12. Paint at least on painting worth 1200 Simoleons.


Points:
+100 each Portrait
+100 still-life painting
+1000 every masterpiece
+2 every painting
+100 max. painting skill
+100 max. painting career
+500 every brilliant painting.
+1000 every painting worth more than 1200 Simoleons.


Source (Credit):Simalot
MASTER OF THE BRUSH CHALLENGE RULES