I learned how to write code for the program, which was not easy at all but fun once you knew it. And I learned how to draw.

(start 640 380)

(draw-solid-rect(make-posn 0 230) 10 70'black)

(draw-solid-rect(make-posn 10 160) 80 140'black)

(draw-solid-rect(make-posn 91 80) 60 220'black)

(draw-solid-rect(make-posn 146 140) 50 160'black)

(draw-solid-rect(make-posn 189 2) 90 300'black)

(draw-solid-rect(make-posn 281 100) 100 200'black)

(draw-solid-rect(make-posn 369 121) 20 180'black)

(draw-solid-rect(make-posn 400 20) 120 280'black)

(draw-solid-rect(make-posn 101 101) 20 20'yellow)

(draw-solid-rect(make-posn 130 101) 20 20'yellow)

(draw-solid-rect(make-posn 100 141) 20 20'yellow)

(draw-solid-rect(make-posn 130 141) 20 20'yellow)

(draw-solid-rect(make-posn 100 170) 20 20'yellow)

(draw-solid-rect(make-posn 128 170) 20 20'yellow)

(draw-solid-rect(make-posn 161 160) 10 10'yellow)

(draw-solid-rect(make-posn 180 160) 10 10'yellow)

(draw-solid-rect(make-posn 208 21) 20 30'yellow)

(draw-solid-rect(make-posn 241 21) 20 30'yellow)

(draw-solid-rect(make-posn 210 90) 20 30'yellow)

(draw-solid-rect(make-posn 241 90) 20 30'yellow)

(draw-solid-rect(make-posn 288 118) 20 30'yellow)

(draw-solid-rect(make-posn 329 118) 20 30'yellow)

(draw-solid-rect(make-posn 288 170) 20 30'yellow)

(draw-solid-rect(make-posn 329 170) 20 30'yellow)

(draw-solid-disk(make-posn 350 40) 40'yellow)