Hey forest gimp, I'm gonna try my best to write a fair review with tips. I don't know how experienced you are and I'm not a pro, I can't even read notes so I don't know which ones you're talking about in your post. Take this as a (hopefully)helpful guide.
Let's start with things that I think you should try to improve. Remember, my sub-consciousness is comparing you to Robert Plant, one of the greatest singers ever to walk this earth(in my opinion):
1. Microphone positioning: You need to practice leaning towards or away from the microphone during the song to keep the volume more balanced throughout the whole song. I recommend setting the microphone gain pretty high, so that when you lean in for the low notes, you get that sweet deep sound. Then when you lean out you can add more volume to your voice without messing up the recording.
2. Nasal sound: Yes, I think you sound a bit nasal. How would I fix it?
a) Now, I can't see you what you look like while you're singing, but I'm guessing your mouth isn't open enough. Try opening your mouth A LOT more when singing. It may feel and look silly but it helped me a lot.
Posture is very important and you should try to stand relaxed and do a thorough warmup before recording. Write "vocal warmup" into the youtube searchbar if you don't know any good ones.
c) Always try to sing through your diaphragm. You should feel the sound coming from your lower chest/stomach area, not the throat or head. You can search for that on youtube as well
d) I find it difficult to tell, but I'm not sure if you're singing like you don't want to be heard. Remember, when it comes to singing, don't think about the people living with you and around you. You're always going to annoy someone when you practice, it's inevitable unless you're a hermit.
3. Note longevity: I think you should sometimes let your notes live a little bit longer(maybe just personal preference).
4. The low part of the high notes in the end: I think the low falsetto notes didn't quite work out. Why? I'm not entirely sure. I'd have you work on what I stated before and then try again. Maybe I'm just too used to Robert Plant flawlessly belting it out in the end.
Are you still with me? I'm going to talk about what I liked now:
1. Your natural vibratto. Damn dude, I love it. You need to show more of that
2. Your timing, it was pretty good.
3. The highest parts of the high notes. When you let them live a bit and let that sweet vibratto show.. good stuff.
I hope you don't take my criticism badly and hopefully I'll see your post when you post next time ;)