Skill

🟧🟧⬛⬛⬛⬛⬛⬛⬛⬛

Luck

🟩🟩🟩⬛⬛⬛⬛⬛⬛⬛

Time

🟦🟦🟦⬛⬛⬛⬛⬛⬛⬛

From the perspective of an achievement hunter that wanted to rush this game: Oh I rushed it alright. The first few paintings were half-decent but then it just turned into colorful strokes of various sizes.

The achievements are easy enough to get. Should take you only about 2 hours.
Definitely excited to play the main game now. (I would say I don't wanna rush it, but knowing me, I definitely would. Sorry, devs...)