The intensity sounds good dude, just be careful with getting lazy on vowel changes, on the phrases at 00:30 and 00:56 all the vowels sounded exactly the same and I couldn't hear the lyrics at all. Sounds like you are modifying correctly, but you're changing everything fully to the modified vowel rather than still singing the pure vowel with that modified color and throat shaping behind it. Work on getting the vowels a bit more pure at those sections.

Also, is this seriously Dio? I thought he did, like, hard rock stuff? This song sounds like it's straight out of the Beatles catalog haha!!! Surprising.

Phil has told me in the past something along the lines of "a neutral mix is the best way to use the voice because you have cord closure and support etc. but JUST ENOUGH" so with that in mind I'd say go for the mixed voice (sounds like that's what you did here). But practice belting it too so you have the option.

I think the most important thing is to start the song in mixed voice. If you start it belting you might get tired quickly and it will be hell by the end. If you start in a mix, you may stay there the whole time if that feels right. Or you may decide partway through that you'd be more comfortable shifting to just belting it out, but then whatever remaining portion you end up belting, it won't be so long that you get fatigued and crap out.

But once you start belting it will be hard to go back to mixed voice so you want to avoid it as much as you can.

This all being said, don't you find the difference between mixing and belting is so subtle anyways? In that regard, you might want to just figure that all out as you warm up, but when you go to perform or record the song, just sing with emotion and let your voice choose the intensity for you. I'm not sure if that's easier said than done, you're at a more advanced stage than me, but I just know that everything I've performed I don't think too hard about belting vs. mixing. Maybe just because I always belt hahaha but I think more than that, you have to let your vocal intuition (rather than a preconceived mental plan) make some decisions for you depending on whatever condition it is in that day - that is what will keep it reliable in times where you have an on the fence decision...you kinda just have to feel it out and not try to make your voice do something it doesn't want to. Same goes with stuff like evading a high melody because you just intuitively feel in your voice you won't be able to nail it today. It's good to be aware of things like that and able to adapt on the fly.

It's important to remember bringing more real estate to the vowels is different than the extent you modify. You could sing all the vowels pure and still be singing on the vowels. Not that you want that, but just to emphasize that what Phil is saying has more to do with the relation of the vowels and consonants, not how the vowels are sung.

for decrescendo I think you just have to plan ahead and support more than you think you need. Again you are more advanced that me, but Phil has taught me that is part of the technique for transitioning dynamics and with what little I have done with it so far it does help.

i don't mean the difference of belting and mixing is subtle in terms of you can't hear it. It's obvious to hear, but do you feel like they are not separate coordinations but kind of interconnected? I think that's the goal. I think of it all as just different dynamic shades of one full voice and that I can train to learn the shades in between. I'm not there yet but based on the feeling of my newly developing mix and more refined belting I have no doubt there are infinite shades in between available if they are trained. Maybe that's what you could go for, finding an in between.

Not sure what you don't like about your mixed voice, nothing stands out to me, you will have to just listen closely, maybe compare to your favorite singers, and try to figure out what the problem is on your own based on your own preferences.

Is your newer recording is what you consider belting? If so I would go with that. But if that's your mixed voice, you could take the opportunity to add even more intensity and learn to belt the whole song and it would strengthen your mixed voice approach.

it's okay to overmodify at first if that's what you need to do to be comfortable. Just start working on going more pure on the vowels when you are ready. That is exactly what I've been doing with my song Glow.