The vocal in your clip doesn't sound like it's part of the music. It sets apart from the music. Like it's in a different space.

To get it cohesive, you should add the music to the project in a DAW and have it run through the same reverb and FX as the music and the level of the vocal should be appropriate to the genre of the music in the mix.
That will go a long way towards having the music sound like it's a group that was recorded in the same room rather than a patchwork.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.