Eyelid/eyebrow droopiness - what procedure(s) would be helpful? (photos)

Over the last several years I've noticed the skin above my eyes seems to be sagging, leaving me looking tired in certain photos and lighting conditions. Based on the photo, can you tell me what you think is going on and which procedures would be helpful? What kind of outcome can I expect? How long is the recovery period? I'm concerned any surgery will leave me looking like I've had an obvious procedure done.