Utilize the Post a question board for feedback, improvements, and learning. Please do not use these links for a free classifed. It is an insult for people who pay to be on the network and their own time and effort put into their individual collections. Items that you value as a collector are worth the minimal Fee for this service. Let this be a meeting place of learning, selling, dealing, collecting, and fun.
Graphics are highly important, but without the text, the chance of good placement is slim.
This is why marketing has to be an ongoing process, but it must be done correctly or the search engines will penalize for many reasons. One other important note, different search engine robots come around and review sites at different times. This means that some may take a day to pick you up or some may take three weeks or up to six months. I hope you will understand this and be patient. Marketing a site on the internet is just one aspect of advertising.