There are numerous photo editing programs to adjust and merge/blend photos. One of our grandsons is in the U.S. Coast Guard. He sent me a photo of the ship to which he’s assigned, docked in Kodiak Alaska where he’s stationed. I took his original and merged it with a flag-themed brick wall painted mural I found in Martinsville, Virginia and got this patriotic result.
I don’t do this sort of thing very often, nor so I have any desire to test the limits of “artful expression.” I just like to have fun with photography.
Sharing My Joy 
I like that.