i think that you should move on to another tutorial because you have used the same style from that tutorial for the past few sigs that you have made and it is beginning to look lees and less good each time. im not saying that its bad but its getting old and you should move on to something else.
if i had to give it a rating i would give it 7/10 but that's only because it looks similar to your others. you have the potential to be really good but u just need that little bit more to get there, so just follow some more tuts and you will get way better