For your assignments, your instructor is giving you lists of questions to choose from. Research is easiest when you're interested in your topic and so try to choose questions that you connect with.
Your next step is to figure out a research strategy. How are you going to research your topic? What keywords will you use to find information?
You can use artist name and names of the artworks as keywords to start with. And you can also use strategies like mind mapping, free writing, or one of the following prompts:
Specialized encyclopedias are a great place to start when developing your topic and can help create a strong foundation for your research. This type of background information can help you understand your topic and give you a better idea of what you're going to say in your assignment.
The library subscribes to specialized art encyclopedias such as Grove Art Online and the Encyclopedia of Aesthetics.
Search for artist names, names of artworks, techniques, or culture. If you're not coming up with any results, try searching more broadly using a term you gathered using your research prompts. For example, there's no Grove Art Online entry on the artist Kent Monkman but there is an entry on Camp.
Gale Virtual Reference Library also has a number of encyclopedias on potentially related topics (Encyclopedia of Religion, Encyclopedia of World Cultures, and the Encyclopedia of Anthropology), the Canadian Encyclopedia, and Smarthistory.