In the end, many terms such as epic and high energy can be subjective and my comments are not necessarily "the truth". What I do find interesting is reading how the composer (in this case you) thinks about their work. Since you used the word epic I used my idea of "epic" to comment/reflect on your piece. In the end, what terms to describe it is up to you, or at least not up to a single individual (me).
Also in regards to the pirate thing, it's probably just a few notes that for me felt similar to Pirates of the Caribbean and combined with the fun vibe it gave me pirate vibes at some places. Who knows maybe from now on I'll start to get Halloween vibes when listening to pirate songs xD