I designed this combination watercolor and zentangle project as a lesson for the class I am teaching at the Riverside Arts Center. The students are to overlap bottles creating an abstract composition. Using analagous colors (I used variations of blues), they will start at the right side and paint the first whole shape - in this case the tall sky blue bottle. Then they skip a shape (the wine glass) and paint in the next shape (the jug shape). Then they would skip the turquoise bottle shape and paint in the round bottle. They should try to shade with the watercolors, making the bottles appear round.
They should then dry the bottles with a hair dryer, and paint the remaining shapes, making two of them in a contrasting color (the red-violet.) They will be overlapping the original bottles where the shapes overlap - taking care to lightly lay in the watercolor so as to not disturb the original paint underneath.
Now, with a thin black marker, they will fill in shapes with "tangles," but not bottle shapes, but the shapes that have been created by overlapping the bottles, using a different "tangle" design for every shape. I have a source sheet of designs I have compiled, but they may design their own (preferred!) Some shapes should be left empty for contrast. I also added some black shadow-like abstract shapes around the edges to complete the composition.
I used another sheet of the Rivas BFK printmaking paper which is smooth and perfect for the ink designs. The watercolor goes on it nicely, also.