Tessellating Dragon Scale

My entry for the Tessellating Tiles contest. My goal was to make a dragon scale type. After alot of trial and error this was my result. 
Scale to need

It does not include but it is planned to make:

• A wall fastening method
• Chamfered/overlapping connections
• Optimized chamfered/fillet corners for 3D printing and connection

Tried to keep it clean as V1, and hope to see some cool and creative remixes.