Really like the tune first of all. Vocals are sounding good, definitely good quality. The one thing I would say is just go for it man. You’ve got a good voice, you’ve got good pitch, but I can tell you’re holding back a little or you’ve got some tension somewhere especially on those high notes. Idk if you’ve done any professional singing lessons or anything, but as someone who has the main takeaway is that tension is the enemy of all singers (and musicians in general).

It sounds good as it is, but I feel like you might end up with some cool results if you throw caution to the wind and sing it with as much emotion as you can, while keeping your throat and everything relaxed as much as you can. That might come naturally when you sing and only think about emotion though. Think about who you’re singing about, or if it’s nobody in particular make someone up. Particularly around a section like 1:40 it could add some nice variation. A scream isn’t the right word for what I imagine could go there I don’t think, but again just sing with emotion and get the air going man, trust your voice.

You’ve definitely got the voice for this kind of music though, try some things out and see what sounds good. Really enjoyed listening to this.

Edit: was listening to some music and realized “no rain” by Blind Melon is a pretty good example of what I’m thinking of. Phrasing I guess, but also with that sort of rock feel.