ohhh, I'm not going to be popular here, but I say no. The small bags look SO great on people of Ninja Sue's proportions, but on a 5'9"er, I say "dinky" not "chic".
Just to let you know what this little beauty holds, today in my 25cm Birkin I have: Dogon compact wallet, Dogon key wallet, large LV sunglasses case, chevre business card case, Motorola Q with extended-life battery (that sucker is large!), LV pochette Tulum (for my headphones), spare keys, phone recharger, pens, gum, lipstick and lipgloss, bottle of Aleve and some folded up papers. This bag holds much more than you'd think!