"Guardava l'immagine."

Translation: He was looking at the image.

[J.Franchomme]

"She looked at the picture." should be accepted...

[ForgetUmbrella]

I don't agree, because the imperfect tense implies a continued or habitual action, and your translation implies otherwise.

[Nonna602151]

He was looking at the pictures--not accepted 21 Dec. 2018.

[dave-ashby]

L'immagine is singular. But "He was looking at the picture" was also rejected. I have reported that.

[lightolsson]

Yes I think so

[4kidsandacat]

Is this not able to be interpreted as an imperative as well? "Look at the image", where the you is implied?

[ForgetUmbrella]

I don't think so. The second person singular imperatives of "guardare" are "guarda" (informal) and "guardi" (formal), not "guardava".