0:20 I would personally just get rid of that chord.
Repeat the two chords in the beginning. It's fine to repeat things sometimes! In this case, most JRPGs start out with repetitive chord progressions at the start and then layers notes on top (same ones in order to avoid clashing) to make it more intense. I hope you understand what I mean.
Although, I would use a better piano. If you try humanizing the FL Studio Piano it still sounds fake. Try looking up piano sf2s, and if you find one to use download Sforzando to play them! :)
Things to add: I would add in an acoustic bass and a saxophone. But definitely use a bass. You don't just want a piano in jazz. They always have a bass.