Using Value to Establish Depth
The first stage of applying color to the quilt top is to establish where the light is coming from. In this case, the light is from the upper left. That helps me to establish where shadows might be and where highlights will be.
The rose hips are rounded by changing value around each hip so that the lighter area is the rounded areas closest to the viewer, and the darker areas are to the back of the hip.
To reinforce the viewer's understanding that the left hip is in front of the right hip, the right hip is slightly darker than the left hip, it has a shadow on the left side caused by the left hip.
The shadow was created using a shade of red, that is red with a little black in it and also a bit of green to dull it just a bit. The use of the complementary color will dull the color it is applied to.
Notice there are also shadows on the upper right leaves to help convey which leaves are on top, middle and bottom.
Next time we will look at how the degree of warmth or coolness effects depth.