Just photos is likely not enough as evidence.
Since you filed AOS, what other evidence did you accumulate?
This may include bank statements from a joint account you opened, lease agreements listing both names, airline boarding passes showing trips together somewhere, health insurance policy showing both names, bills for utilities in both names or phone plans showing both names etc. If DL / ID was obtained by immigrant, include copies of it and US citizen spouse ID showing same address. If you married after coming on K-1, you should include marriage certificate. Also, may include venue or restaurant reservation for celebrating the marriage, letters from friends and family addressed to both of you congratulating on marrying.
As to photos, you need to edit them in word. Add 3 photos per page and caption them: date, event, place, who's on photos. The most valuable pictures are of you with family and friends, colleagues. Photos of just two of you are pretty low in value. You can print those in B&W as long as it's easy to see who's on the photos.