Yea, Cody's right, read up on some tutorials, because these are not too pleasing to the eye. Look in the tutorial section, we have plenty of good tutorials for beginners.
-_-; At least give some advice guys... --------- Sig 1, I think looks pretty good, only one thing that I don't like about it: the text. I think if you upped the transparency on the text, it'd make it slightly more attracting :3 Sig 2: Color scheme could definitely do with a change, maybe a brighter set of colors? The render I think needs to be moved on top of the other layers. There's a ton of blank space on the left that could possibly be filled with text... Try to think of how to dominate the visual hierarchy of a sig when you're making one, but without going too far, cos #1 makes me think 'Ooh! Pink & Bubbly!' and will make me wanna see it, whereas #2 just doesn't have that kind of effect. :3
On the first one I would make it so the text stands out some more because it's rather difficult to see since the opacity is low. On the second, add some effects to make the focal point stand out, also, change up the color scheme because it looks rather dark. There are some great tutorials around so I would check some of those out to get better. :3