Code Sketch

clear()
setBackground(black)
setSpeed(fast)
val ang = 115
val repCount = mathx.lcm(360, ang) / ang
def shape() {
    repeat(repCount) {
        forward(100)
        right(ang)
    }
}
setPosition(-220, -50)
setPenThickness(1)
def block() {
    setPenColor(randomColor.fadeOut(0))
    shape()
    hop(70)
}
def block2() {
    repeat(2) {
        block()
    }
    hop(-70)
    right()
    hop(70)
    left()
}
def block3() {
    repeat(3) {
        block2()
    }
}
repeat(4) {
    block3()
    left()
    hop(20)
    right()
    hop(80)
    right()
}