Its all old work, haven't been GFXin awhile for now. I might enter the SOTW if i have some inspriation. I'm still a noob 8)
These are fantastic. I'd have to try pretty hard to critique most of these (except the Mio, but that's just a text fixup). Especially the Skate King one. Great, just needs something to balance it. Some nice simple text should do the trick. Could have done with a low-opacity gradient map or a photo filter to bring the colours in line a tad, they're just a little bit over the place. Looks a bit cluttered in regards to the C4Ds, but then it's more my preference for simplicity speaking on that. Still, very good. Also great, could have done a bit more to emphasize the surreal feel of this sig. You're pretty damn close to where it could be, though. If you can make it a bit softer (maybe pastel-esque) you'll have nailed it. Two things, the sub text is a pretty badly blended colour and it's hurting my eyes against the white. Yellow = definite nono. Secondly, the crispness of your C4D isn't quite fitting in with the slight blur on the render. The contrast is just a little niggly. This needs a border to define the top corner and give the sig a bit of a boundary. Otherwise, good. EDIT: I'm really digging that colourful sig, so I played around with it in PS to show the sort of effect you'd be looking at (I hope you don't mind, I'll remove it if you'd like). Also, save your work in .png format. It's far superior to JPEGs, and I'd hate to see little artifacts spoil your work. Great going.