@hodges2800 ya can add more pics and update description up to the last 24 hours of any listed auction item ya have posted. Once the timer hits 23:59 (11:59) ya can no longer add any more pics or info.
Just an FYI, it usually helps to have an in-focus pic of your product and usually multiple. One can take 2 or 3 pics and post in about the same time as 1 unfocused pic. It will surely increase the bids beyond where they are now.