Google Tilt Brush - 3D Art Work - Portal and Petals

A while ago I used a VR headset to play around with a program called 'Google Tilt Brush'. At the time I had a weird fascination with Portals and how they could look in games so I used the program to design a few. I tried to get a 3D picture to go with the screenshots, but sadly the textures would not show up with any files I made.