A screenshot of your DAW is missing, please include it next time! Didn't really hear triplets anywhere and the mixing is a bit earpiercing with that lead. The arrangement itself was great tho.
The melody isn't heavily triplet based, but the rhythm "guitar" plays triplets for the first minute and the drumline is pure eigth-note triplet in the A part, with triplet fills in the C part (B is almost exclusively quarter and whole notes).
