pin in tree

Cracked bark always has something about it and having an almost abstract - and yet not abstract at all - rusty nail in the center, changes it from being merely a texture sample into a neat little snapshot.

However in a pseudo-abstract image such as this, it is important that every detail is tack sharp, and it seems to be blurring towards the edges. It might simply be cropped away, maybe a square crop would work just as well, but it all depends on whether there's enough excitement to work with in that particular piece of bark.