It would be interesting to allow a rectangular selection tool to select a cropped portion of a generated image that might produce a great image on its own if it could simply be enlarged to a higher resolution than the crop by itself might yield. The crop would need to be regenerated in a way that keeps the same look and feel but produces higher resolution in a new version of the cropped image. In a way, it is creating the same image area in a new genertion with more detail and sharpness. Not sure if this makes sense.