I have a friend who would like to use some of my photographs to print into poster of about 24"x30" for an event. I'm not sure if the quality of my photographs are good enough for it. The dimensions are about 5200x3740 and 4910x7360, and pixels are between 1.5MB to 3.8MB. What are the criteria that I should be looking into ? Are they sufficient to print into poster?
Trying searching out, but didn't get answers that I need. Thanks for your advice.