The prominence that blends to become a filament on the Northeast seems to create a 3-D effect. The swirl pattern of the sunspot also seems apparent.
Images taken with Skynx 2.0 M camera attached to a Televue NP 101 IS telescope. Coronado 90 mm and 60 mm Hydrogen Alpha double stacked. 120 images stacked with Registax. Whole Sun mosaic created in Maxim. Color and combination in Photoshop CS2.