。
She looked at the picture.
Literal
She [topic-は] picture [object-を] looked-at.
About as bare-bones as a polite Japanese sentence gets: topic, object, verb. 見ました is the polite past of 見る ('see, look at, watch'). The ~ました ending makes this neutral-polite — appropriate for talking to anyone you don't know intimately, or in any context where you'd choose desu/masu over plain forms. 絵 itself is broad — picture, painting, drawing, illustration — anything that can hang on a wall or fill a page.