>>527822454
I like this planet one because it features the world of Sonic for the first time, though it has a similar geography to Earth. In SA2, the Earth also seems to have a similar geography to our world, I think the change to an alternate geography in Shadow 05 was a retcon

Anyways, this is the last puzzle. This one is actually a rework of an earlier artwork from the 1992 SegaSonic calendar. Both this and the planet one seem to be by Osamu Muto. I'm not a big fan of these because I think they're too cutesy, but I still think they're cool