I listened to a couple of your YT songs. The songwriting is ok, the instruments could use some balancing.
Your main issue is the vocals.
The female vocals are out of tune, a lot, and almost consistently. They sound adlib and/or unrehearsed. I think if you want a quality product you need to fix that problem first as vocals are the main thing average people listen for. The lead vocals are passable but also need work.
The vocals are too far out of tune for any kind of auto tune to rescue them. I don't have a problem with using AT but with discretion and minor fixes only.
You seem to be hiding the vocals behind the instruments and adding reverb to compensate.
A producer/engineer can't fix the main problem - you just need to step back and look objectively at the vocals. If you cannot hear that they are out of tune, or you don't care I don't know what to recommend.
It sounds like you've put a bit of work into these songs and videos. If you are just having fun, that's fine, but if you want to have fun and get kudos, you need some work.
Some things help with singing -
stop smoking
buy a singing program that you use on a daily or at least regular basis for exercise and strengthening
warm up before you record or perform
memorize what you're going to sing before you sing it
Welcome to the forum.