Created and rendered in Blender Cycles v2.77.
You can buy the 3D models with 12 colors here: https://www.cgtrader.com/3d-models/animals/dinosaur/low-poly-t-rex-standing-pose-printable
https://www.cgtrader.com/3d-models/animals/dinosaur/low-poly-t-rex-curious-pose-printable
https://www.cgtrader.com/3d-models/animals/dinosaur/low-poly-t-rex-walking-pose-printable-12-colors
View it on DeviantART!