Can be turned into a sketch.

1, ready to draw paper brush, the first step to draw a square pineapple shape, as shown in the following picture:

2, the second step to draw the pineapple leaves, as shown in the following picture:

3, the third step to draw the pineapple's bottom of the bumps, as shown in the following picture:

4, the fourth step will be outside the pineapple fruit of the bumps of the whole flower, the fourth step. As shown in the following picture:

5, the fifth step to draw the bumps on the small thorns, so that it is completed, as shown in the following picture: