I found that blood vessel was too clear to see even if I repeated a skin color several times. Therefore, by overlapping the blue color using airbrush from the top of the vessel to blur around.
I have painted the arms and legs to like the photo.
Because the whole body is a little too "warm", I covered with blue group color.
I painted the edges of the head dome in smoke.
Tail was also painted in the same way basically.
Further covered with defferent color several times , it became like this.
Finally I took the masking tape from the mouth.
Attach the arms and legs to the body and adjusted the color while watching the whole harmony.
This chestburstter can not stand on their own because it is too heavy. So, the next step is fabrication of base