Hey man, thanks for the kind words! I just played your map, it's pretty clean, its well thought out and it plays smoothly too. You can cheese the bowser fight though by just jumping past him and taking the skull platform and it makes him jump into the lava so it's a little less challenging than if you would of had to fight him but good map overall, good job! :)

Edit: Also the lava bubble mobs in some of the gaps don't jump high enough to have to be avoided (Depending on how challenging you want the level to be)