Honestly the only issue I have with this is your style. You're doing very heavy "Cursive Singing", where all your words are slurred together and it's hard to tell what you're actually singing. This style also is cutting down on the projection of your voice, which I'm sure would sound very nice if you opened up a bit more and were more solid in your delivery.
#What major/minor improvements could I make to go from just 'ok' to at the very least 'good'
tribal sorrel
Besides the singing style, you sound great dude. Good pitch control, I love the use of voice cracks, just that it's hard to tell what you're actually singing.
It's a combination of overly relaxed mouth but tightened up air flow. It gives this constrained and slurred delivery. It can work for some people, but the primary issue is it leads to very hard to understand wording.
I wouldn't worry too much about the accent, and would work more on getting more airflow and support, but also work on proper separation of words in your lyrics.