You make the use of shapes to make your stuff, that's nice, but it doesn't work for everything just putting them on a layer and overlaying them(I think) I do like the last two avatars, very good. the other two large pieces aren't amazing, but I must say that the second one looks great, the colors fit, the shapes fit, and it has the feeling of good blending. The first one of those is not too great, because of the text, it doesn't fit. The background is nice. I'd like to know what you use to make those shapes. And finally the tag. It's simple, straightforward and as a good flow due to the duplicated layer with the filter. But even then, you could have added gradients and worked with adjustments, which it seems you didn't. Or with textures, and even lighting effects. Most things I say are just things to make it flashier, if you wanted something simple and achieved it, then it's great, but it's still fairly safe to point out the adjustments, anyways. I'm not liking how huge the border is, but the color actually fits. Get some tuts on different styles and try them out. Though using the filter for the tag was pretty creative.
