Yes but I can not do this on 200 contacts everytime I change my rom... When I do this its ok, but when I resync with Google account the pictures get small again! This is a real blunder from Sony! Android 4.3 fixed this for HTC, Samsung and LG... To bad to by a new top modell from Sony and this is still a problem
They are not to small on LG, HTC and Samsung... So I think something is wrong when you sync to Sony. S5 has same picture size on contacts and I get big pictures when I sync to that device from Google