"Overall appearance" refers to the general impression or look of something or someone when considering all the different aspects together. Full definition
This would include the shape, size, color and overall appearance of the dog. (duckdogtrainer.com)
I think you will be surprised what a difference that can make in overall appearance. (bluecollarredlipstick.com)
It's got good brightness and colors, though obviously loses out a little on overall appearance next to 1080p devices at this size. (androidcentral.com)