I think the workflow is great. I really like the Groups Bypasser. I still have to learn more about how to use it though. I did not upscale some of these images, because when I turned off stage 1 and on stage 3, I got an error in the Image Sharpen node. I assume it did not have an image. So, I turned on Stage 1 and ran it, but it went ahead and created a new image before upscaling. I am also impressed with the model because it can do vehicles. I have had a lot of trouble with propellers with other models, but this one is pretty good.