You can not get more realistic than this.

Making the portrait by using real fabric for making the attire of the subject

Learn how to make proper wrinkles and set the cloth in such a way that it's fall looks natural and fitting on the subject

How to make proper fall of the skirt the girl is dragging in the painting

How to make exact wrinkles of the buttefly wings

How to paint the other wing of the butterfly

How to create ocean waves with proper curves

How to realisticaly shade the ocean waves and make the entire painting