Well done! 4/5 for now but definitely going to 5 when badges and polish are done.
A quick set of fixes/ideas:
Clarity in area changes (i.e. an arrow to show where the "door" is.)
Show which skills are on cool-down on the whole skill button, not just a number in the corner (possibly for lack of mana/stamina as well)
A separate level up menu
Ability to choose your starter skill-tree (depending on how many skills you are able to get in later levels)
Comparing items in inventory with what is equipped.
So far a great game! Hope to see more from you in the future.