well if you're talking about good alignment then the main picture and frame should never be in the centre in the first place
if you look at all three of your sigs, none of the main renders are positioned in the centre which is good but with regards to this adriana lima sig...moving it to either one of the sides would create a lot of negative space and make it look unbalanced so you'd need to think of something to put there.
also your best off having the frame at a slight angle so it doesn't clash with the shape of your sig and border.