Hoi Sam_MC,
Sorry to tell you that your map have been rejected.
You didn't pick the best theme, because there is already a snowman map, only one is not awful, but be sure to pick an original theme, or try to make your map enough different. The build could be better, I think the snowman is not too much attractive, and there is a lot of floating jumps around the snowman, so it's a bit messy. I suggest you to build your parkour on or in the build, not around. The parkour is not really good, it's pretty repetitive and boring, I suggest you to use more different blocks, like ice, soul sand, fence, slime, iron bars…
Thanks for submitting your map, would be really good to see more maps from you !