EE visual arts topic on the works of Odilon Redon, is this focused enough?

[FarFromCreative]

I have been researching the life and works of the french symbolist/ post-impressionist painter Odilon Redon and I have been brainstorming quite a few possible research questions. In my opinion this one is the best one from all the possibilities that I considered: Use of color in the latter works of Odilon Redon from 1898 to 1916

Is the RQ focused enough? I know, the time period under investigation is still quite broad, but he did not date his work so more exact time would make my work extremely difficult.

[Emmi]

I'd probably narrow it down to two or three artworks that you feel you can get a good analysis out of. My friend that did a visual arts EE said that picking two/three works that have a lot of content to them (i.e. the color is very significant or tells something important about the message) is best because then you are more focused.