My take - Pretty much same as Rons. Though, I hear moments where notes are not supported, then I hear other notes that are.l think what is happening is that when you try to sing quietly, you are letting a ton more air through and, thus, making the note unsupported and airy. Try to , instead of allowing yourself to blow air to make quiet notes, use a well supported clean but quiet tone instead. Other things I hear was little things like removing support from a note that you are holding right before you end the note, instead of ending the note first. Download a shareware version of cakewalk. You can use your built in mic. Then, add a compressor to the vocal channel. Make it "pre" by clocking the green lit "post" button twice . That button is on the far left of the track. It will help you high loud notes from clipping. Over all, your voice tone is nice, timing is good, just need some technique work.