The following will be your best bets in terms of databases that will have secondary research using the methodologies in art history, visual culture and gender studies related to this class.
These are good resources for quick, accessible definitions of terms.
Additionally helpful to creating your glossary, these are some resources that define key terms and concepts about feminized labor.
These are some places to start looking for images. Make sure you have the right to re-use or share images, and please make sure to keep track of citation information of images.
These two databases would be good places to look for maps of the Mediterranean, especially historical maps. Many of these images are in the public domain.