It's okay.
The piano is good and doesn't clash as you said but the generated guitar doesn't sound good at all. It's kind of lagging and cliche. It sounds too electronical, it's not enjoyable really. I only liked the piano and also there was too much crashes between the drums. The drums are okay but the guitar at the end is too highly pitched, either lower the volume because I can't hear the drums properly. A song must balance between the drums, guitar and the other stuff in the background that is still hearable, piano, flute ETC.
It's not a bad song but the guitars are very badly generated, either get a new present or use Vanguard or Nexus. I don't know much about creating guitar sounds.
I know my Desolation song had clashing notes, I fixed some but forgot the rest, I know about clashing notes, I just didn't have time to fix that.