2nd track immediately got me on board! Sounds really great. I think I could have done with a little more happening in the lower frequencies but that's definitely a personal choice and not an objective one.
3rd track is also fantastic, and I think the final cherry on top to make it really stand out would be to fine tune the piano velocities, as the notes all currently sound roughly the same dynamic. A little bit of up and down on the melody dynamic would sound great!