The ever romantic, Gustav Klimt's The Kiss:
Jan Van Eyck's Arnolfini Portrait:
The most famous painting of a dutch couple --- it is actually a wedding portrait, so it is very fitting to the subject of this post!
Why not go for the most famous & most often painted couple, Adam and Eve? This particular painting of the very first husband and wife is by Rubens:
I can picture a bride and groom (in their beautiful wedding gown and suit, of course!) in an orchard or wooded area, and of course there must be an apple in the shot!
Edward Hopper's Nighthawks:
Stay tuned for famous works of art as a basis for your bridal portraits...