Your choice of instruments is really successful in creating that nighttime, nostalgic atmosphere (especially that mix of delay guitar and electric piano). The harmonies are really cool too and add a little mystery to the project, which fits well with your idea of rediscovering lost memories. Something minor to think about for the future is the mixing (everyone's FAVORITE part of music making I know), as the drums were getting drowned out a bit. Nice work!
P.S. Have you ever heard the album Paper Castles by Alice Phoebe Lou? Your project reminded me of it :)