Barnacles on rusty iron

Barnacles (and a few limpets) growing on the multi-coloured and highly textured surface of rusty ironwork on a British seaside pier. I like the wide range of rust colours from dark blue to light orange and how they are distributed over the surface in a random way resembling a piece of bright abtract art; and the way that the acorn barnacles have become stained and incorporated into the natural design.