Beautiful heatsink over the copper base and heatpipes also takes some heat away from the GPU. However, the major heat load is removed via heatpipes to the second heatsink.
The inner side of the second heatsink is covered with thick protective film that prevents the heatsink from contacting with any electronic components on the reverse side of the graphics card PCB. If the gap between the heatsink and the graphics card PCB is big enough, you should better remove the film completely.
The cooler base is also protected with a plastic sticker against scratches and other physical damage. Although the base surface is not polished, the finish quality is very high:
The design of CoolViva Z1 implies that when installed onto the graphics card the second heatsink is beneath the graphics card and slightly shifted to the back edge of it: