This was supposed to be ash samara, (something like this, but it ended up looking just like leaves.
This design is originally carved from a small vinyl eraser. It probably looks best in a resolution that matches the original size, which is (depending on the eraser) around 4cm x 2cm or 2.5cm x 6cm (0.75" x 1.5" or 0.875" x 2.375").