That first melody reminds me so much of Pirates of the Caribbean haha! :) I think I know what Remile means about the voices - the mood of the piece is quite upbeat and major for most of it, then these war chants come in and gregorian chants come in and it's sort of like "is this supposed to uplift me, or create tension?" and it can be a little confusing!
Overall, I love the choice of instrumentation and it's a bit of a mishmash of everything. You have some nice melodies and themes going on. I particularly enjoy those uilleann pipes! The beat and stringed banjo-styled rhythm (I'm guessing it's from the strummed lutes) can get quite repetitive. Perhaps some more dynamics in the piece would help on this front :)
Lots to enjoy about this piece! Keep up the great work. You got yourself a new fan!