A lot of my custom pieces are made for people with specific needs.  This one was made for a young lady who was recently diagnosed with severe depression.  She likes cats so I used shed caracal claws.  The bottom stones are sort of a personal 'blend' of mine for people under emotional stress.  I use black tourmaline to neutralize and transmute negative energy, rose quartz to promote self care, opal to represent positive energy, and then clear quartz to amplify the whole thing.  The other stones are particularly geared toward combating depression.