Larger than life

There seems to be a move to decorating the side of buildings in Glasgow with artwork. This is the latest one I've found in Mitchell Street. I say found, but actually you can't miss it, as it's the side of a building - literally! I don't know why we're doing it and I can't seem to find any info, but I quite like it. They certainly brighten up the buildings and the areas. No idea what this one means, maybe it's in honour of our CSI obsession?