You have gotten better with your English, Nyanko! Your pronounciation was never awful, but I can definitely hear a difference. ^^ I liked all three of these. I think the main issue in all three is that you keep trying to belt whenever you possibly can, and it sounds more like screaming if you're not able to hit those notes in your chest voice. You can hear it especially in Ben, where it makes it not as sweet as it could be. Cause when you do sing more quietly like the "never can say goodbye" line in Never Can Say Goodbye and a few lines in Ben, you sound great. Being able to belt is an awesome thing, but it's something you should bring out when the song needs it. I guess it's like just because you can belt a note, it doesn't mean you always should, if that makes any sense.
...That being said, though, hearing you sing "Don't Stop Till You Get Enough" is like crack. XDD I love it to pieces and it makes me grin like an idiot. Michael Jackson all the way. Private life aside, his stuff is classic. ^^