My senior sessions usually last around 2 hours. I almost always schedule them to start about 2 hours before sunset. I don't put limits on outfits or locations (although locations must be a reasonable distance from one another). Each senior session comes with an on line password protected gallery of hi-res images to share, download, print. This makes it very convenient for you because you are free to share your gallery with whomever you want, saving you the trouble of making sure everyone gets the pictures they want.