As a one-off, I like the idea of using the jersey as the primary logo rather than a patch/crest. That being said, I don't this was executed particularly well. The added mountain patch makes an odd burgundy-on-burgundy border which wouldn't be a big deal, but those are two totally different materials so it looks off/sloppy, especially when the color is supposed to look continuous. The placement of the mountain patch also makes the "A" proportionally weird. But really, the biggest issue for me is the white of the "A" going clear up to the neck as part of the collar; yes, it looks like a tucked-in napkin, but it also makes the "A" too tall. I would like to see a version with an all-blue collar as I think it might help with some of the general proportion issues.
Overall, it very much looks like a prototype. It's not a bad starting point - but it could've easily been improved upon. If you handed this to me, I'd probably just assume it was for a semi-pro roller hockey team.