I am still new to the whole GFX scene and just hoping for some critique to help me out for future sig's!
I use GIMP.
Early Sigs:
This is where I begun and I hardly knew about graphics
1st sig:
My first ever sig, all I knew was gradient background and how to put a render and text

2nd sig:
Basically the same idea but learned about downloading text and placing render

3rd sig:
This was for a SOTW, subject was Tech. Used half a tute then fiddled with what I ended up with.

4th Sig:
This was from reading a tute, just learning a new effect and helped me learn about opacity.

5th Sig:
Same as the last one just a step further

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Middle life sigs
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6th Sig:
This was my first attempt at brushing, I also learned a few features like some filters on the GIMP.

7th Sig:
An improved version of the last sig, took a step further with the render duped and put behind.

8th Sig:
This was just some experimenting with grunge brushing and filters.

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Stepping up a notch
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9th Sig:
This was one which I followed a tute on, I didnt expect a light render to work but tried it out and came out fine.

10th Sig:
During the last sig I had downloading problems so couldnt add text so I added a border to this and asked a friend to download the text and add it for me.

11th Sig:
I was bored and decided to try out a 'land of the rising sun' effect. Helped me out with creating brush's and using filters.

12th Sig:
I used and tute and added some of my own effects to this and I think it turned out great, my best work.

13th Sig:
This was for a SOTW, just a quick stock based entry i threw together.

1st LargeArt:
This was just something i got intrested in and threw together cause I didnt really like the tutes out there.

14th Sig:
I had a few versions for this, it was really simple but it wasnt just motion blur after motion blur, it had other things in it.
V1:

V2:

V3:

V4:

15th Sig:
Just something which I threw together and hate the out come, looks too plain.

16th Sig (PS):
Plain, simple, sweet!

17th Sig (PS):
Experiment'a

18th Sig (PS):
Abstract

2nd LA:
Just simple experiment, 6 text layers, few filters etc.

1st Avatar:
Resized

Those are all my creations, might do some tutes related around a few soon.
All C&C greatly accepted. 8)