Today I figured out how to stich 4 images into one. I scanned this painting, then used Photoshop's nifty merge tool to put them together. Literally two clicks and I went from 4 different smaller images to one big image that looks like I used a huge scanner to scan. The edges weren't perfect, but that was from the original scans, not the merging process. I cropped slightly to resolve it. The painting is 18" by 18".