How To Edit the Lighting
After you've placed your artwork(s) on a wall, click on the lighting icon at the bottom menu to adjust shadows, brightness and contrast.
Here are some tips on how to match the right lighting:
1) Take a look at the space you have chosen to place your artwork in and see where the light is coming from. If there's a window, a lamp or any other source of light, make sure to match the direction of the light. This will help you match the illusion of the painting really being inside the space.
2) Try and match the brightness with that of the space. Remember, if the artwork were to be in that space, it would be receiving the same amount of light as any other object in the room. And for the colors not to be distorted, matching the brightness and contrast will help create a more realistic placing.