weed, what you're hearing is the choir clashing with the trailing reverb of the bell line, specifically on beat two of the measure. Plus the staccato choir is clashing with the sustained choir lines.
I think that this has a really nice sound to it, but like weed mentioned, it's a little wonky in terms of choir harmonies. There's also the issue how conservative it is. Instrumentation is certainly a viable method of arrangement, but for the purposes of OCR, I don't think it can be relied on as the primary method of arrangement. Part-writing is very important, and I think that lifting not just melodic lines, but harmonic and continuo lines, out of the source doesn't really jive.
There's certainly a lot of personalization here, I'll give you that, but I'm afraid that the combination of issues is a dealbreaker for me. Really wanna hear this tweaked up. NO, resub