This is a wildflower here in Texas, among other places. During spring and the start of summer we have fields the size of cities full with them. A sea of Yellow. I don't think you have seen wildflowers until you have seen a spring in Texas.

I opted for a single Black Eyed Susan versus a field to highlight their individual beauty. I used a combination of Yellow ochre, Hansa Yellow Medium, Perm Green Light, Burnt Umber, and Titanium White.

You can see WIP photos on my blog: HERE.