I like the idea of using corrugated roof with clear - so light can get in... but I guess it will depend on what material it is? I am happy to clean it every so often - but will need a ladder!! Like this shape and simplicity..
This lovely ivy-encased art studio in San Francisco is the work of Scott Lewis Landscape Architecture who replaced a storage shed with this remarkably green shedworking atmosphere or as they put it, a “green cube” with ivy growing on a metal framework surrounding the studio.
Having a small wendy house/shed at the bottom of the garden can make a lovely little office to work in! Our property in Amble has plenty of outdoor space for something like this! http://www.thisispropology.co.uk/property/windy-edge/