So I discovered this great little tool by BrickLink called Stud.io (https://www.bricklink.com/v3/studio/download.page) that allows you to not only build lego models and price them up, oh and print the manual for your creation but it has a render engine. So I rendered out a Batman I made. Then I took him into Hitfilm, put a background in, added some grade for mood, then applied the Rain effect. Pretty happy with 20mins work. New desktop image.