I used to participate on a website that did contests and all sorts of stuff with signatures and art work. I used to sit in photoshop for 8hours a day. I might get back into, tonight prob due to 10hour maintenance ruining my evening.
Ill dig up some old work if i can real quick!
EDIT :
Found some :D
Playing with some text.
Some basic abstract work
MY style of art was very geared towards Lighting/Shadows. So these have 100's of layers of color/light work.
this one in particular took a very long time to get the lighting/text perfect.
And this is a collaboration with an old artwork friend from the website. Everyting made from scratch minus the batman himself.
:D enjoy and critique my 4-5yr old art work :D