When you learn about filters, you will be very good. Try to use brushing along with filters to give your signatures a better look. Border and text is meh.... Would look better without it. Focal is weak and doesn't look good at the way left. Read tutorials, they really help. I recommend this tut (it helped me, and probably many other people here): http://senthrax.deviantart.com/art/Full-Si...torial-55042010
Well it could always be worse...uhh.. maybe Not too bad of a job, you'll get better with sigs in time