I've been experimenting with the Skanect software and used the built-in Sketchfab upload function. I've found that the colors always turn out rather bleak and washed out, like in this test I did:
New Skanect Model
In contrast, scans from ItSeez3D (that also uses the Structure scanner) look much more vibrant:
Bart from Sketchfab
by 3D selfie
I see this all the time on Sketchfab, any idea why?
Full disclosure: I work for Sketchfab