Created durring my "Atoms to Bits to Atoms" workshop at the 2014 Thingiverse Make-A-Thon
The base lizard was sculpted by maxdrz in sculpey, then scanned on a Makerbot Digitizer. I then pulled it into MeshMixer and combined it with beefy arms from meshmixer and a pair of wings from DutchMogul's awesome Achisia, Oathbound Gargoyle Outlaw
All the sculpting, scanning, and modelling was done in under 45 minutes.
I generated a version with and without supports. Try the supports version first.