I went sketching with my sketching group to the Botanic Gardens at the foot of the United States Capitol. Inside the enormous greenhouse you can do “plein air” sketching indoors. Great option for cold weather for the faint of heart non-outdoors-persons like myself — though for the record the weather the day of our visit was magnificent!
Above is my drawing using Caran d’Ache Neopastel of a tree growing in the corner of the main gallery.
Aletha Kuschan's Weblog 
Indoor-Plein air is really a funny Expression. Your painting is wonderful and lively 🙂
thank you, Nadia!