The game has great bones for sure. I think, for me personally, the dusting is very repetitive so I lose interest more quickly. If there were other mechanics to cleaning up the coins that would make it feel a lot more engaging. Perhaps maybe you start with one level of brushing, then next level you also maybe having to buff out scratches, but if you use the brush on the scratch it doesn't work. Loved the artwork and that all the coins were not the same.
Nice job on the game!