These are my first attempts at sketching the sun.
The prominences are certainly out of proportion. Obviously because I wasn't using black paper, I struggled to convey the lighter areas on the surface; I chose just to represent them as lighter, squiggly lines.
Both were drawn while viewing through my 10mm Ethos, on a PST. The first was done at about 12.15pm today (19 Oct 2010), while the second was at about 5.50pm.