From my experience, it could be over OR under watering. My leaves drooped when I under watered them but your soil from the pics look really wet. If you think you water plenty, give some time for the soil to dry out and see if the problem fixes itself. But if you think you DO let the soil dry out you might need to water more. :thumbsup:

EDIT, actually in closer inspection, your leaves look a little discolored. I can't see the discoloration well enough though to give a diagnosis. What is your PH, all that good stuff. If your not concerned with the discoloration and its always been there (i.e. burned tips, etc.) look at under or over watering for the cause.