Look Sharp 3 Mystery Cache

NOTE - cache originally published by parmstro

The cache is not at the published coordinates - but they are in the picture somewhere.

See Look Sharp 1 and 2 for themes.

There is no significance in the colours or placing in this picture - that's not how to solve it.

GPS signal is not wonderful, but clue should get you there.

Assume N 51 and W 00 as usual.

NOTE: you must download the original full-sized photo from here (or flickr) for this to work.