The issue is more the phrasing of the solo violin, the tone is nice, and I can see the melody working on a solo violin, but it needs smoother dynamics, perhaps some gentle progressive vibrato, maybe a touch of rubato here and there. (These are just guesses, i’m no expert on idiomatic violin).
Maybe get it to sit deeper in the mix, maybe with more reverb? (Again, just a guess)
It wasn't something I was used to when young I admit, but now it's just something I happily accept to improve my music. Although I am very sensitive about my singing and still in denial...but meh never going to upload that publicly!
Here's the final version. I don't think I can do much more with it, but yeah still open to pointers and suggestions, which I'll take note and use for future compositions.