Edinburgh from the Botanics

This is Tuesday's collagraph print (Edinburgh Printmakers). The plein aire sketch is below painted on an outing with Sketchers group. I have been sitting on it for a while puzzling out how to do it. It has ended up being a variable edition - due mainly to lack of skill with the enormous viscosity roller in etching. Below is a framed print - you can see what I mean by variable. 
This is my 37th print this year - my cupboard is very nearly full of prints - I shall have to change my strategy and do more work that takes longerr. Usually it takes me about a day to make a plate and the same to trial and print an edition of 10.