I just recently started in photoshop again after taking a break from it for quite a while. I use to always do the renders, brushing, stocks, etc. signatures but have recently become very addicted to abstract signatures. They are the first that I have done. Also the signature with the planet in it, I made the planet for it. Anyways yeah, comments and critiszm are appreciated, well not bad comments. I like good comments and ones that are actually helpful like suggestions.

1. Not bad, pretty good; could use something, though i'm not sure what...
2. If you would have added some more lines, but in the background and a bit faded out, you could have probably had some 3D thing going on.
3. The sig could use an overall matching color.
4. Sig could use a tiny bit of contrast, and text may have been better at bottom right corner.
5. More contrast.
6. More room-taking on the left would have been nice.
7. Pretty good, could use something extra, but i'm drawing a blank.
8. Very nice! No further comments.
9. Nice, also. No further comments.
10. A more visible background would have been nice.
11. Some more contrast.

So, yeah, i'm a contrast promoter.