This is Blowjob scene page sketch, and color art for panels. It takes time just for the head parts. The cause is coloring of the hair. Usually, one pattern of head is drawn and only that is used to express a pseudo animation. However, when I tried it, it didn't look too good. I thought that at least three patterns with different face angles should be prepared. It took time, but by preparing various patterns (different hairstyles and facial parts) based on this, you can express with various characters.