This is a recreation of Frank Stella's painting "Effingham 1" from 1967. It is a seven-sided orange shape, consisting of a right angle, 3 obtuse angles, and 3 right angles. The is also a yellow diamond shape. There is a blue border around the 4 most "inside" sides of the orange shape, which then continues around the yellow diamond. The border actually continues around the diamond and then cuts into it, making it more of an irregular shape as opposed to just a diamond. Here is the reference image I used for this recreation.