AbstractThursday154 Shell like

Today was a very busy one, with lots of jobs to get through in readiness for our weekend away in Somerset.  After, shopping, present wrapping, cake making and sundry other chores, I had very  little time to do something for Abstract Thursday.  I decided that the shells in our downstairs loo would make an interesting subject.  I've not done a great deal of faffing, just applied Picasa's heat map and inverted the colours.
Many thanks to Ingeborg for continuing to host this challenge.