My Signatures. :3

The Cloud on chocobo image is poor quality, and it is not rendered very well. The same goes for the stock in the third sig. On the fifth sig, the image is stretched out of proportion. Or so it looks to me. >_< The Sora and Kairi stock could use some sharpening.

I think one of the big things you need to work on is blending. You could try finding some blending tutorials online, since there are a lot of ways to do it. I personally don't use smudging very often. I'm more likely just to just erase with a soft brush on low opacity when I need to and then brush around the image with my colors or add my effects in.

I also think your text needs some work, but I am not one to advise well on that. I think it's better to stick to simpler texts than some of the more decorative ones, and it should look like a part of the sig, not like something added last minute.

I'd comment more, but I'm supposed to be back at work in a few minutes. I'll try to remember to come back and comment on each individually. Just keep practicing.

 

Found a little time to comment some more...

Sig #1: Like I mentioned before, the render of Cloud is poor quality, and that drags the whole sig down. I also find the render size and placement a little odd. I feel like it leaves too much "empty" space to the left of the sig. Meh. I have a hard time comprehending the background. Is it made with brushes? I dunno, it doesn't appeal to me, but I realize that as a newbie you'll be playing around with all the different tools and effects. I made shittier sigs when I started out. Text is not good. Unlike alchemistz, I don't think it's necessarily a no-no to put the text in a corner. It's the font and color that don't work for me in this case, not the placement. This might just be me, but I find the text hard to read. It makes me squint at it for a second, and I don't like doing that. The black color makes it stand out awkwardly. I would've picked a color from the background or off the render.

Sig #2: Not bad. I think the sig lacks a little depth. A curves layer or some brushing in white to make a light source would help with that. The render doesn't blend into the background well. It looks like you spent a lot of time with the background, then picked a random image and placed it on top. Text again is not great. This is partly just my preference, since I hate those sorts of fonts in general. But like in the last sig, the black color makes it stand out unpleasantly.

Sig #3: Basically the same comments as I made on #1 and 2.

Sig #4: Better blending, unless that's one stock image, as opposed to a render. The colors all suit each other. The placement of the dude with the flames? (no clue) is not what I would choose. I like my focals more towards the middle.

Sig #5: I mentioned earlier that I thought the render looked out of proportion. I think the background looks better than it did in the first sig. I don't care for the text. I'm more distracted by the "Forbidden love" than I am by the people.

Last, but not least, #6: I find the blue swirls very distracting, and they look out of place because the stock image is very neutral toned. I like the idea of the bubble for the text. It takes up a lot of space, though. Sora/Kairi image needs sharpened a bit.

I feel like I'm writing all negative things, even though I tried not to. >_< Keep practicing and check out some tutorials online if you'd like, and you'll outgrow the newbish-ness.