Because I will be honest, both your images feel immaturish, and lacking any kind of imagination
While some of your points are valid, I would be very careful with the words you use, especially after viewing some of the things you've done. Don't toot one's horn, so to speak.
@NightShroud
When I gave you that fireball, I wasn't implying you simple paste it and add one effect to it. In fact, I actually stated that fireball might not be good for you, but gave it as an idea of the clean-cut edged fireball I was speaking off. If anything, I at least expected you to cut it out.
Just like your other post, you need to show more before posting it here. Merely a background, especially one as simple as yours, is not enough for us to really even say much about. It's like holding a blank canvas and asking what someone else thinks about it. They say there's nothing there but you respond with, "Yeah, but imagine all that could be there!"
From what it seems, however, you haven't even gotten past the background stage of a sig. If you're going for a common and basic sig, you still have pictures and text you need to put on there, both of which require equal amount of attention and skill as making a good background.
All aspects are hard because all aspects need to flow together. This is why you need to figure out what it is exactly you're trying to do. Color scheme. The objects you intend to use. Layout. What kind of text you might like to use. These are all things to think about before you sit down and make something.
To be honest, all your first stuff is going to be crap. Unless you just really need help, I'd advise against posting your first stuff until you're confident enough with PS to make something worth presenting. It may still be crap but at least you're at the point where you can improve. As it is right now, you're still learning the basics of the program.
And don't feel bad. I could post a lot of things that I've made that are complete crap. In fact, I think a lot of stuff I make right now are complete crap simply because I use PS as a on the side "hobby" (I wouldn't even warrant it that). However, what you see me doing now is ten times better than what I used to do when I was first learning how to even do the most simplistic things in PS. Yet, even today my stuff is just basic abstract background, picture, and some text. I haven't really gotten into REAL design and "fabrication" of things all because I'm still not comfortable with some aspects of PS.
My advice: give us something to look at.