im.g.1.18.2.Quilt 4-square Blocks

Instructions
This is a continuation of part 1. Same rules apply. This time, the task is to do:[br][br]1. Upper left: a 4-block pattern that has 4 lines of symmetry: along both diagonals and vertically and horizontally.[br][br]2. Upper right: a 4-block pattern that has NO SYMMETRY (neither rotational or reflection symmetry).[br][br]3. Lower left: a 4-block pattern that has ONLY 180, 360 degree rotational symmetry (2 possible answers).[br][br]4. Lower right: a 4-block pattern that has 90, 180, 270 and 360 degree rotational symmetry (2 possible answers).
Quilt Project Part 1

Information: im.g.1.18.2.Quilt 4-square Blocks