Download images from web

I have a list of artworks and images, about 240. I would like you to find good, reasonably large sized where possible, images of them on the internet and download them to a dropbox folder for me.
Some of these will have many alternative versions so you will also have to use your judgement as to which one or ones capture the essence best.

They are all of very famous works etc so will be easy to find, should be a fairly simple and quick job.
I am also happy to answer any questions you have about this job.