For V0.5 I tested out training prodigy, I think it's the best one yet. It's fairly fried though.
Try starting around 0.7 strength and find a look that suits you from there (usually lower works better)

Only tested using AutismmixConfetti

Tip: put 3D and Realistic in the negatives, and try removing them one at a time to see what look you prefer.
Specifying watercolor (medium) and similiar styles can be helpful.