Woodblock carving is a form of relief printing, in which the intended design is carved into a woodblock, creating a relief in the design. Paint is applied and the paper placed on the woodblock, and when it is run through the press, only the raised parts of the woodblock transfer over.
This print uses different color schemes applied in layers, meaning different relief carvings were made at each step of the process.
This is an extensive, difficult process made only possible by the professional team that helped Crystal bring her vision to fruition.
A video of how 2 color woodblock printing works:
https://www.youtube.com/watch?v=T7n3BiyvIa0