The original was an unfinished charcoal pencil drawing on cartridge paper that I did when I was about 21 so I decided to enhance it in Photoshop by flood-filling in a green wall and a blue sky through the window panes as it is no longer possible to finish this charcoal drawing.
This was drawn many years ago while sitting in the stairwell of my student flat in Limerick, Ireland. Unfortunately I never got around to finishing it as I no longer have access to that building. So I improvised with a little Photoshop.
749 views @ 29th March 2013.
Example of a framed print: