I painted this one on a beach no less :) From the painting you can't see it obviously. Pic below.
I used the lilac paper again as background. I remember having to finish quick because a big storm and rain was approaching!
FL19 Floral Still Life Painting 'Violet, Red, White & Yellow'
You can see how simple your 'set-up' can be. And this subject can be painted anywhere.
Of course, when outside, you would need a bit of light, sunshine works great.