I like to think I can tell a capable vocalist in the first couple of notes they sing. It is the same quality element that every gutarist searches for, I am sure you have also. It is Tone! Hard to define but you know it when you hear it. You either have it or you have to work a long time to get it. In your case I heard a hint of it. Thats a good thing - it can develope and grow with practice and instruction.

The thing I see here in these reviews "reading between the lines" is folks trying to tell you that to be a good vocalist you have to love to sing. If you force it or fake it, it won't work. Good luck.