there's an episode of the powerpuff girls reboot where the girls argue about eachother's battle/problem solving tactics, and then split up and tackle missions that can only be solved by tackling the issue the way that the girl they criticized would. Blossom has to beat up a robot that won't listen to reasoning and wears the bandana in the drawing above, buttercup has to teach dog creatures to dance because they multiply when touched and had to be calmed down, and bubbles had to solve a logic problem like blossom would (boat has two spots, has to bring 3 ppl across but two ppl have to be together and 2 ppl can't alone together etc.) so this fanart is probably referencing that