ART essays

I need an essay for each question bellow, and each essay has to be at least 350-500 words MLA format.

1. Throughout history, technological developments have enabled artists and architects to express ideas in new ways.

Choose and fully identify two works of art or architecture and the specific technological development that made each work possible. One of your choices must date before 1800 and one must date after 1800. For each work, analyze how the technological development enabled the artist or architect to express ideas in new ways.

2. The representation of light in painting has been used to serve a variety of purposes. Identify two artists, each from different art historical periods, who have explored the effects of light. Discuss the function and use of light in specific works by each artist.