Hi Shazbabe,
Well done on putting your work up for critique! : )
I agree with Tracey, I would say to practice your smilelines more, I used to get spare tips and practice practice practice. Its the only way to get better and then your not under pressure as your not 'practicing' on an actual person. Geeg (i think) did a great tutorial on smile lines. Also, the 1st finger is shorter and rounder than the rest. I would also take in the sidewalls a bit- what you are aiming for is a straight line coming down the sidewall, not a flaring out one.
But other than that, they are great. Your cuticle area looks great- nice and smooth, that is really important.
Well done, take care, Corrine xx