Better Gerber Review Tools
For checking gerbers, I use GC-Prevue, but it's not much different from gerbv.

If you want to generate presentable images and your CAD tool does not offer that, try looking at some 3D gerber viewer tools:


3D Gerber Viewer is an online tool and does a decent job, similar to your example.
ZozfPCB is a desktop application and seems to have quite a few features. It was a bit fiddly to use last time I tried it, though.