how to draw lettuce simple design of a green lettuce using the grey background

This "How To Draw Lettuce Simple Design Of A Green Lettuce Using The Grey Background" Image is dominated by 10 beautiful colors such as Tin, Steel, Kettleman, Uniform Grey, Pig Iron, Silver, Palm Leaf, Kuro Green, Sunny Pavement, Black. This image looks so awesome with this color combination.

#909090rgb (144, 144, 144)Tin
#787878rgb (120, 120, 120)Steel
#606060rgb (96, 96, 96)Kettleman
#a8a8a8rgb (168, 168, 168)Uniform Grey
#484848rgb (72, 72, 72)Pig Iron
#c0c0c0rgb (192, 192, 192)Silver
#304830rgb (48, 72, 48)Palm Leaf
#183018rgb (24, 48, 24)Kuro Green
#d8d8d8rgb (216, 216, 216)Sunny Pavement
#000000rgb (0, 0, 0)Black