I like the first one the most personally even though I wouldnt classify that as short hair its really more medium in length,but I would try that first and see if you really like that and if you do and your brave enough to try a shorter hairstyle on your next visit to the hairstylist, then go for it! Personally the really shot hair you like would be to "traumatic" for you because its a huge change not only in the style but the weight lost from your head tehe XD. Bring the picture of the the style of hair to your hairdresser so she can get it as accurate as possible.
Also, I looked at the picture of you I think the shape of the first image you displayed would be very flattering to your facial features and structure of your face. Are you also considering on dyeing your hair?