I have spent the past couple of weeks in Wales and England, where the colours of the landscape have varied from the muted browns and greens of misty hills to the more vibrant greens of new folliage and the various colours of spring flowers...but one of the small bags of mixed yarns that I had brought with me has insisted on working itself into a more tropical ocean theme - as I have noticed many times before, freeforming sometimes just has a mind of its own! Week 18's scrumble began with the…