[Kyrillos]

Might wanna save it as a different file? PNG always makes anything look great.

Also when you save the picture, or before you save it you might wanna check thats its completely clean. I could see that your current sig is not a very good scan. Maybe getting a better picture would work.

I also you do some extra cleaning on my pictures before they go anywhere.
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Who would have thought that my manga cleaning days would come in handy.
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If that doesnt help you can post what you did to the image and we might be able to see where you went wrong. Or someone else knows.

Ah, you cleaned manga for a time too? I've lost most of my talent in the field.

Basically, if something looks 'good' in image preview/editor, then it'll turn out to be about 'fair' in my experience with PS. If it looks exceptional, it'll be closer to the quality that your looking for.

...

I should get back into the spirit of making signatures with actual renders and such.