Observational drawing is somewhat still new to me, since I mostly draw from pictures that are referenced, or photographed by me. It has helped me change my perspective while drawing, and I will continue to find art in the real world.
My favorite aspect of drawing is sketching portraits. My personal art style can be found by how I draw portraits. It's the most personal aspect in my art, other than original pieces. It seems realistic, but with harsh lines and quick mapping of the features.