a rough or unfinished drawing or painting, often made to assist in making a more finished picture.
Sketch
write or draw (something) carelessly or hurriedly.
Scribble
form a mental image or concept of.
Imagine
provide (a book, newspaper, etc.) with pictures
Illustrate
a device or implement, especially one held in the hand, used to carry out a particular function.
Tool
investigate systematically.
Research
the feel, appearance, or consistency of a surface or substance.
Texture
