The front spines look very good! This was not finished with the prep, so you can try to finish or leave it as it is now. The rock was cracked when removing the rock, but was repaired very nicely. I didn't even noticed until I had it for a while. It cuts through the rear spines a bit.I have a picture where you can see a little of the crack. This is a very unique Trilobite and is also later in their life cycle. You can search online for "COMURA BULTYNCKI" and you can see other fossils of this Trilobite that are done with the prep and they look great (and some sell for thousands of dollars). Please see pics and message me with any questions. I CANNOT CHANGE IT OR REMOVE THE OPTION.