A Secret Garden

A Secret Garden is a four color print in 15 layers. If printed in .3mm, the first 2 layers are white, on layer 3 I changed to yellow, on layer 8 I changed to green, and on layer 13 I changed to red.
Art was created in 4 shades of gray, and used a height map to create the STL.
I am using Repetier so I can preview the layers to see when to change colors.