those are cool salt and pepper shakers - and so perfect for this challenge! i like the simplicity of this, and the clean lines of the subject(s)... i think if it were me i prolly wouldve worked on bringing up the whites a little and eliminating the yellow cast... the white on white images i've found on the interwebs (see link below) tend to be quite bright... i'm never really certain what the right kind of processing is - i gave up long ago and just converted to black and white to avoid any colour contamination...🙃
https://www.google.com/search?q=white+on+white+photography&client=safari&rls=en&sxsrf=ALeKk02paFHy5OIa2mexlUhJD5OWCePYYQ:1583371717280&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjmw4Wml4LoAhWjAp0JHcMhDnkQ_AUoAXoECAwQAw&biw=1381&bih=705