Colorful Illusion

how many things are there in the picture.

what about this artistic face.

what's the personality in the picture.

what's this in the picture.

what's wrong with this picture.

Abstract Lights

lightw wave is electromagnetic emission, particularly emission of a wavelength that is evident to the human eye (about 400–700 nm, or possibly 380–750 nm). In physics, the term light sometimes refers to electromagnetic emission  of any wavelength, whether evident or not.