Iris - Wrap

Here's a wrap on the iris. This was one of those pieces that just seemed to go on, and on. I like Verithin pencils, how they slowly build layers. The scan's a bit on the light side but this is still rather high key.

I had a hard time finding dark values. Should I try mixing colors? Or, is there that nice dark color already penciled up? Questions for later as week 5 is already underway and I've yet to begin. It's three exercises this week--oyster mushroom in graphite, oak (swamp?) in ink, and swamp rose in colored pencil. Busy...