Moodkip: Well done by Moodkip, the colors are nice, and overall it's really good.
D/J/_!DaNgEr_*MOU5E*: Really nice, but a bit too oversharpened in my opinion.
Trigger: The style is very cool, but it is kinda harsh to look at.
They all seem pretty plain, just a couple of stocks grouped together along with 1 or 2 effects. I would suggest getting GIMP, it's a free download, and it only takes a short time to figure everything out. Look up some tuts too.
K, I worked for a short time on both of these, so they're not my best (I think). Whatever, I know the second one is a bit weird, but I got sorta bored. My text isn't any good still, but hell, I don't care right now.
You're getting better, deffinetly, I see you're using different effects now, and making your own backgrounds. Let's start with the render, shall we? It's very blurred, I can't really see what it is. Maybe sharpening it a bit will help. As for the effects...they're repetitive. Experiment with what different brushes do, and mess around with the other tools (like doge/burn, the ink especially, I can't get enough of that thing XD). The effects you used, the big, black and bold ones, drag your attention away from the render, and I seem to be focusing more on the text. They stand out too much, or at least divert the viewer's attention. As for the text, I can't really comment on it because I haven't mastered text at all either.