In the next release (v1.1), we're planning to add the ability to select which columns are shown in the table. Right now only the first 10 columns are shown.
In the submissions table, a download link is shown for each image (for columns that are shown in the table). Images are also included in the .zip download.
We don't plan to add data visualization to Central, including maps. See this topic for more about the Central roadmap: