I'm a beginner at photoshop, and would like some stuff to do to try and get better, I have a very limited understanding so don't expect anything. I will try and do sigs, but this is not a sig shop, so don't think I'll make you a sig. You can provide withs stocks and such if you like, some results will be posted.
What i do is think of a game and make a sig on it .. If your new to photoshop search photoshop sig tut on youtube and watch some vids.. Good luck..
I am a begginer too and look what I made VVVVV. Its not hard to learn photoshop its just that first attempt at it. That is what made me hold back on doing it for a while.
I learnt the ways of photoshop via experimenting and trial & error. You could easily search for tuturials though. Just play around with the brushes and filters, find your style, perfect it.
good luck, majority of glowy sigs arnt very good looking. But if you can pull it off I will give you good credit.