Wonderful work, I think. The dinosaurs are dramatically posed, and the space scene looks very much like something I'd see on the cover a game box. That being said, I think you have but one major improvement to make: your foregrounds. Stock scenery works nicely in the backgrounds, and is well-employed here; your figures are finely rendered, composed, and are quite well-arranged. But without convincing scenery, these images lose much of their luster. Your space foreground looks, for lack of better adjective, lifeless. Perhaps more inspired topography, or better lighting would help. And I agree, the grass in the dinosaurs picture is a meaningless concession without some tweaking. Other than that, I think you're doing a fantastic job, and I sincerely look forward to seeing your future renders. Work on the details, and try making some more unique figure models, and I think you would be quite formidable. And to all you one-line nay-sayers; english major- suck it.

don't listen to those people, your crap mate!!

great mist on the mountains but where are the grass shadows

the dino's is really good