Not sure how music theory friendly you are, but I love how you switched from Dorian in the beginning to mixolydian and the very end. What I mean is how the harmony has more of a bright, major feel starting at 2:36. You have a very simple accompaniment pattern going throughout, but your harmonies and the counterpoint you use is lovely. :) I especially like the interplay of vocal parts around :30.
If I were to complain about something in this, it would be the electronic part at :42. While it's not bad by any means, it just feels so out of character for this piece. A totally subjective opinion, but I think that combination of electronic and celtic doesn't jive as executed here. Why did you make the beginning of the song like you did? It's cool but seems like a separate entity from the body of the piece.
I recommend that you add some more effects to the tracks of this. A little more reverb on the vocals and perhaps just a tiny bit of delay on the accompany would be so very nice. Also, please put lyrics in the description next time?
Lovely track and wonderful singing. It's always a pleasure listening to your music. :)
Please contact me if you would like to use this in a project. We can discuss the details.