Ya got me with those trills. Hot diggity. I wouldn't really say this is metalcore quite. Sounding quite a bit like some old bands I really used to dig.
Drums need to come way up in the mix. Can barely hear your bass also.
It's also really interesting what you did with harmonization even if it's mostly porting around parallel 5ths and octaves. Reminds me of the final boss battle with Redips in Megaman X Command Mission for some reason.
Toward the end I feel like you're falling just a bit out of tune or something, flat on those open strings. Could be hallucinating that though. It's fairly late.