I think 1st pic, strap looks a bit on the long side so make bag look disproportionate too big to the rest of you. The 2nd pic, the strap looks like its been adjusted shorter which I think looks fine, its like a hobo bag look. Which I think hobo type shape bag looks alright when it's a bit big even on petite ladies.
I think the hobo/cross body style just do not mix. Hobos look too big to be worn cross body imo. I know they give you the option with the longer strap. Now in the second picture I don't think it looks too big on you when it's worn on your shoulder. It hangs much better on you as a traditional shoulder bag!