There is a lot of goodness in this mix in terms of clarity, balance and panning. But I hear a lot of frequency masking, and a general lack of the "sparkle" frequencies up top. An exciter and/or EQ on the snare and tambourine would help them cut through. Look at applying complementary EQ to make the left and right rhythm guitars contrast better - they're too similar.
I'd also apply some volume automation to bring out some of the little touches like the answering guitar licks leading into the bridge. While listening to a mix, try to identify - moment by moment - the one thing that you want the listener to focus on most and make sure that thing rises to the top. Even if it's just a one-second phrase or accent.