You got posted in 2012, so I'm kinda surprised at the sound quality here. But that's going to be a moot point in a moment.
It's not annoying for me, actually. However, I do think this is very fake. How detrimental is it? Well, enough to be a NO on the judges panel (sorry), but it's not going to be primarily due to the arrangement. No way. The creative harmonies are really helping the interpretation level. It's not too close to the original at all. It diverges at 0:37 very nicely while retaining some DDD chord work. 0:56 still sounds like DDD but definitely sounds more solo-like than the original melody. 1:11 has some impressive chord progression work going on for a pretty climactic section. Note-wise, this is really, really, good. No doubt the source usage is above 50% too.
The first thing I would consider though, is the runtime. You have a 2:05 mix, so the question is, does it develop enough in that amount of time to warrant that runtime? I would say yes. It's more of a gut feeling than a true evaluation, but yes, I do think it develops quickly enough in that amount of time. It doesn't feel too short. Check in my book.
The secondary thing I would take another look at is the mechanical piano and e. piano, followed by the bass presence (which is a little loud). The piano is stiff and needs more velocity variation, mainly in magnitude, since its hard tone makes it sound robotic. This would be an easy fix if you had a better sample with more velocity layers and a more drastic velocity response. Maybe someone else who has a better piano sample could collab (for instance, I could, if you want). The same idea with the e. piano. As for the bass, it's not too far off. It's about... 0.8~1.6 dB too loud.
The strings are something else I would look at too. They work as a climactic element, and in such a short piece, they need to be on point. Seems like they might be somewhat dry (but it could just be a long predelay on the reverb). I think after lowering the bass and fixing the piano and e. piano tonal hardness, it'll expose the strings more, and at that point checking the reverb would be a good idea to hide the fakeness a bit. Fake spiccato or staccato strings are pretty simple to work with, IMO, more so than, say, legato violins.
So, overall, I would look at these things:
- Piano and e. piano velocities to fix the tonal hardness issue as much as possible
- Bass volume, by about 0.8~1.6 dB downwards
- Possibly the strings reverb, maybe a sample upgrade if you can manage it, or layering more strings to thicken the timbre and hide the fakeness
- General loudness (which might be fixed as you fix the piano, e. piano, and bass, but check it anyways). Should be about 0.4~0.8 dB quieter overall, more or less.
It's short, but that's not necessarily grounds for rejection. I think a piece with a runtime of about 1:46, or something like that, has passed before.