Blooming purple in Stillman&Birn Delta book.

I added quick outline to blooming trees sketch in Stillman&Birn Delta series sketchbook, which was laying for days on the top of my scanner and looking at me with reproachful purple flours, while I was sleeping, eating and breathing cracks and ruins for the mural during past few days.
Little Delta book 6"x8" is so cute and comfortable to drag along, so I sharpen my pencils and hope for some  sketching adventure, with Bijou box, since it takes washes so gracefully.
Here used ink and Kuretake and Tradio pen.