I like the progression at the beginning, even if the synths are a bit cheesy. Sounds a bit like a flashy 80s disco demo. I like the harmonies at :12 too, but then the transition at :25 was a little sudden. There's also a bit of mic popping or stereo clicks going on in the background at :30-:40 or so, which might just be the sample. Either way, I think it's worth seeing if you can get rid of that with filtering or something. The harmonic content of the piece is good, but gets repetitive towards the end. I like the blissful mood and well-balanced texture, though. No complaints with the mixing either. I think the main things you need to fix now are your transitions and the lack of variety. Changing up the melodies later in the piece (or even the chord progressions if you're feeling fancy) would go a long way towards keeping things engaging towards the end, even if this isn't a particularly long piece. More creative transitions might involve more automation and filtering, but simple solutions like drum fills, sweeps, and crashes will work fine in a pretty cohesive VGM song like this. Still, it's a cute and catchy piece. I enjoyed it. Keep at it, Juliobee! ^^