i vote ImpendingRiot...nice colors and i like the sharp appendiges. also the important thing about these cows and chows is the concept so even though a few of the other pieces looked really nice and had strong concepts important body parts were missing or out of the frame. i think there should be a rule about having the entire creature's body in the frame.
vylent: awesome creature, colors maybe a tad saturated but i guess it works, the armour looking plates are a nice touch. only thing is how the third hand is attached to the abdomen...can't imagine much flexibility or reproduction :P
HenryNougat: very normal creature idea i guess. big, muscular, horns just the lava thing is different but even so its a bit on the boring side its what people would expect. the rendering is a bit wierd esp. that spraypainty type brush on the creature. good try tho keep using these activities to practice
Lundsfryd: awesome! i like the knife weapon thing on its tail. the coloring is a bit flat tho just one variation of orange and your shadows aren't very prominent. the first thing you should do when rendering is to define the shape of all the objects on the creatures body so it can read instantly. then move on to colors then details.
LegolaSS: not a bad idea, scale wise it looks very tiny which i'm guessing was what you wanted? i suppose typical arena creatures are huge and look daunting at first sight..kudos on going in another direction. messy linework tho, could have been polished up a bit more.
ThinXIII: schweet! was my favorite, the fleshy grooves and growths on the horn and body and the eye of course, is awesome..the only thing like i said before is that i can't see the whole creature... i dunno how it walks, if its sluglike, or crablegs or tentacles or what? i'm sure you leave it to your imagination but the point is to give us your concept.
RoflMetroCop: not bad but the plain colors you used on the creature itself light blue for the skin and darker blue for the shadow makes it really flat and the dynamic background [if its even so dynamic] overshadows the creature itself.
Sleaze: very very odd but i liked your description. funneh!
The Chomper: nice anatomy on that one, really nice. wish you'd rendered it out with some color tho.