I chose one color of frame for all but mixed up the sizes .
I painted the frame of a large area on my wall - in black. Then I used stencils to write "Family is Forever" in it. I put all of our family pics inside the frame. It turned out nice and I got a lot of compliments out of it. Very inexpensive - the only thing I purchased was the stencils. I had black paint left over from another project. Also had painters tape. I used tape to make the box.
Hello- this Art Gallery wall link might be helpful.