Bram Sels' Shantek

This is the first illustration that really struck me on my initial look through and it has stayed with me for several days now, possibly because there is a sense of narrative here, possibly because I believe that this thing exists in a way I don't believe all Lovecraft's creatures do (the textures here of wing and bone sell that verisimilitude nicely) and possibly just because I wonder who those riders are that are crazy enough to mount these terrible things!