My niece in the air! Tried a 3-sided wall with layer adj. gradient and I know it's not quite right yet, but it is what it is and I'm done!
Going to practice more, this is really fun and something I've been meaning to do, but put it off until Cassie's chat -- Thank you, Cassie for a wonderful tut!
Katie's "coffee shop" (color adjusted) included with the chat.