Beautiful, I love how you used instruments almost sounding like a whale singing in World of Memory. The blend of orchestral and electronic sound is incredible. The sound going backwards really sells the Memory theme, like flashbacks, the noise feels like you can see an old picture, an old memory that is a bit blurred by how long you actually experienced it. It's amazing!
All the others are perfectly orchestrated, please tell me you're a professional, I can't believe it if that's not the case!