I love the idea for this one, and I think the music really creates the vibe of the strange mirror and reflects each of the characters' troubles and personality. It's really cool that you made this in online sequencer, it's so creative for a software that uses quite simple sounds! I loved "Mysterious Mirror", just a little piece but sounds so cool! And "Alone and Adrift" is beautiful, I didn't know online sequencer could make something like that.
Similar to what Jon Odate said below, I would have loved to hear Angie's theme develop into a B and C section, but of course with time constraints it's understandable to stick to the A section!
The idea for the theme and the music you've written is so creative, following Cloud's suggestion below, I think you'd be able to make some fantastic stuff with a DAW like Reaper. Keep it up!