I found it monotonous and boring. It sounded pretty good at first, but then you just used piano and strings synths for EVERY INSTRUMENT!
I don't mind if the timing is off or anything, but your composition is wrong in the notation department. The part where (in the original) the dulcimer synth plays and the second flute solo, you missed a few notes entirely. The background music, instead of switching to accommodate the lead parts (as in the original) just looped so the dulcimer solo didn't harmonize correctly with the background. That shit made me cringe a bit. Lastly, you didn't use any of the notes that fade-in, but that's ok, because you used a bass line to fill the gap.
I don't mind that you omitted the percussion, because that is a stylistic choice.
The mixing is alright. Nothing too super weird. The dulcimer solo was a bit quiet, but whatever. Who cares, right?
I think that you need to go back, listen intensely closely to the original song and try it again. I'd suggest bringing in more different instruments so it doesn't sound so bland and monotonous.