Like following themes from this site
Balloons – looks a bit quirky and has multiple scrolling speeds. Minimal design.
_Architekt – clean and simple, minimal, white background, good layout.
Yaminth – Yet another minimal theme, translation ready abilities for going international (you never know)
Thoughts – responsive with large scale images (pretty important)
Clean Retina – Responsive – clean, simple retina ready – Like look of this grey background and lettering. Enhances photos well.
Shuttershot – needs awesome photos
Meeta – plain but could be customised – featured graphic and responsive layout