Turn on both bluetooth device on both cellphones. Open the photo you like and then send via bluetooth. Make sure that the other phone is just near so it can be searched by your phone. You can also send photos using MMS if you wish to send them to a person's phone who's far from you.
Transfer files from one phone to another couldn't be easier with a phone to phone transfer program. Simply open it, connect both the phones to your computer and click start transfer. Phone numbers, photos, songs, videos and other media files are moved to your new phone.