Art drawing and shadding

in art we are learning to shade a cube.it  was a little hard to draw a cube that looked like it was coming out of the page as im not good at art.with shadding we darkend the edges of the cude and got llighter and lighter in the middle then we drew a shaddow and hadded that the same. with art and shadding its better to use a structure i find that it helps me draw better.


here is a picture of my cube