I always felt like this could've been better but not quite sure what I wanted to do with it
I like this one, i think it would work well with the newer strings samples that sustain. Specifically, the violin toward the end of the sequence would sound a lot nicer sustained so that it could be legato (notes are smoothly connected to one another). For the rest of the sequence, you could add a little bit of light percussion like a tamborine hit on the 2nd and 4th beat of each measure. You could also put a little bongo fill at the transition between two sections. I think a typical kick/snare pattern would be too much. Measure 49-56 gets a bit too loud and starts to peak, making crackling noises. It would also help if you pan the instruments more by separating similar instruments. For example, you could keep E piano 50% to the left and place grand piano 50% to the right. Same thing for violin and cello. Some you should still keep in the center like jazz guitar