Those are good for a first rip, but they're definitely in need of some polish! In this case, using the Map Viewer lets you capture areas a bit off-screen, but the game seems to use some advanced programming tricks to get more colors in the background that would normally be possible. That's why levels 1 and 2 don't have a consistent color in the background; the sky is technically one color but the game changes it as the screen is being displayed. In any case, this is where taking screenshots would be useful since you can't always rely on the Map Viewer to show exactly what appears on screen.