3/5 Because of:
Not being able to sell/dismiss ants
Upgrades seem a bit random
Always waiting for the black ants to finish the painting
-> Therefore no real progress in painting speed
Too bad the matching rules seem ridiculous too me. Sometimes the obvious match is not accepted but some very different looking stones are considered the correct matchup.
Progress slows down at second stage, down to a level you can stop playing because you need to wait like 40 minutes of idling to progress any further while you can do nothing but watch an orange planet.
Thank you so much! You're awesome.