I like the main character's design quite a bit. I also like the blend of chip-tune and real instruments.
Pan Flute And Dragon goes hard, as others have pointed out. I just love the premise of a dragon main character who's only armed with a pan flute. The Nightmare sounds unnatural and otherworldly in a fitting way. Actually, I just like the instrumentation all around, I feel that they tend to compliment each-other nicely. The Nightmare sinking into Temple, becoming a bit more triumphant, and having the echoes of distant music boxes was atmospheric and nice.
-Chey