The art style is impressive. The bridge generation effect is awesome, I would put it at the start of the game so every player sees it. As others suggested, the jumps are too tight and the view adds difficulty sometimes to see if the platform that is ahead is in the same Z plane as you or not (i'm talking about the floating white platforms)
Also, the first section seems too crowded (after the tutorial, the section with flames,spikes horizontally and vertically right next to each other) and I think is too much for the start of the game, after that, the pacing is much more better in my opinion.
Good job, and as I read that this is your first game, Congratulations!!!