If your camera uses a particularly wide angle lens, or you aren't
shooting perfectly level, distortion can occur and make buildings
appear crooked or uneven.
Art4RealEstate can adjust minor distortions so that building
surfaces appear perfectly straight, and perpendicular to the ground.
Notice in the following before and after images that the sides of
the house are corrected to look straight and level. Other techniques
used are sky replacement, adjusting grass color, removal of small
objects in windows and overall saturation of the house paint.