I've produced a bunch of Tyrannosaur pictures lately, and the ones which are turning out best are the ones which embrace a colour scheme, rather than just trying to replicate scenery. These two are case in point, the blue scheme and the orange turned out much better than the ... like green and muddy brown of some of the other pics.
I might go back and recolour some of the other pictures with this in mind, or perhaps add some highlights that incorporate a colour scheme more effectively.
Hope you like 'em!