The instrumental performance and production is phenomenal, it's just the vocals that hold the music back from being truly great. They feel very under-produced, whereas the instruments are super Hi-Fi, so that's a little weird. They could definitely benefit from being louder and maybe having a a little extra in the low mids. Mic choice may be the culprit here, but EQ and compression definitely needed as well.

The vocal performance isn't bad by any means, but a small improvement in pitch would put these tracks on a new level. Just my 2 cents.

All in all, this is solid work. Keep it up.