Thanks for your input, people
I guess I didn't really put a lot of thought into those fluffy additions. First, the polar bears did look kinda forced into it, the bears would have to look a bit more ferocious or at least have a different posture for it to work. They are gone. I've added a mountain, but I'm unsure about that too. It looks kinda tame now, but I'll try to make it more detailed with a darker background. Oh, btw, the aurora is a bit misplaced too. So close to equator there would not be northern/southern lights anyway :p
Small update, just made the text a bit more easier to read (albeit a bit uglier), and added the fiery island. The red is supposed to be red minerals from the volcano. Dunno how realistic it is, but I just wanted to make it.