It's best to keep a small visual reminder of the post on each scene, as it's less costly cognitively speaking than recalling it (working memory is very limited in number of assets and duration).
If you have a review of the entire process with all information in the final scene, it can compensate for the absence in the intermediate screens.
However, if users are interrupted in the middle of the process, it's likely that they will need to check what they were doing when they come back. If they can easily navigate back to the 1st screen without losing the information they already entered, it could work, but it's not ideal, as any additional step is a chance for the user to give up and leave.