Love this paint scheme. Unfortunately some say that the plane's paint scheme with the sharp fangs, as it appears in the photo above, was touched up by the artists at the museum, which means that the plane with this exact paint scheme was probably never flown by anyone at all. It was just a display piece at the museum.
For those who are looking for information about this plane can find some here
This page contains airplane profile artwork (paint scheme) and research notes for Kostylev's White-15 (Dragon head), La-5 airplane, belonging to the 4-th GIAP. By Anton Petrov (Planes in Profile)