Please help ASAP please I’ll mark as brainlister

Problems
The bottom of the red figure should be long; similar to the top of the blue figure.
The top of the red figure should be the same as the bottom of the blue figure.
Red are: (1, -1), (4, -1), (1, -5), (3, -5), (2, -2), (2, -4), (3, -4), (4, -2), (4, -2)
red points should be:
(1, -1), (3, -1), (1, -5), (4, -5), (2, -2), (2, -4), (4, -4), (3, -2), (3, -2),