40 LED Blinking with IC555

The IC555 is used to blink LEDs. Each LED can be on, off, or flashing at duty cycle designed.
Path List :
R1 = 4.7K
R2 = 150K
IC = IC555
C = 1uF ,0.1
Transistor = 2N2905 ,2N3053
R = 100 ,220 , 160 Ohm