Previewing art layout on screen saves time, money, and unnecessary wall damage by allowing you to visualize color harmony, scale, and spacing in various configurations. Digital tools help simulate gallery walls using your actual wall photos, letting you toggle frames, wall colors, and arrangement styles before committing. This method minimizes guesswork, ensures compliance with hanging rules like the fifty seven-inch eye level, and builds confidence in your choices. Ultimately, screen previews lead to more satisfying installations and a polished finished look.