Boyd’s Bible Dictionary:

(painting) (Ezek. 23:14; Prov. 25:11). Sculptures, reliefs, or cornices, meant. Movable or hanging pictures not favored by Hebrews.

Concise Bible Dictionary:

In Isaiah 2:16 the expression “pleasant pictures” is supposed to mean “pictures of desire,” as it reads in the margin, referring to anything on which their hearts were set. In ancient Egypt the nearest approach to what is now called a picture, is the colored representations made on the walls of the temples and tombs. The walls in Babylon were ornamented with pictures on enameled bricks; these seem to be alluded to in (Ezek. 23:14; compare Num. 33:52). In Proverbs 25:11 “apples of gold in pictures of silver” probably describe some piece of jewelry judging from what immediately follows; others prefer to translate it “graven imagery.”