Step 16: The next two steps for drawing Hulk's hair are a bit tricky and can be skipped if you want. Add a few sets of jagged lines around his hair to represent shine. They are pretty random and form somewhat of a circle shape on Hulk's head.
Step 17: Shade in the shapes you've created to give the illusion of shimmer and volume on Hulk's hair.
Step 18: Using the main oval as a guide, draw in the rest of Hulk's face. Give him cheekbones around where his ear is, a massive jaw that bulges out and a somewhat parted chin.
Step 19: Finish drawing Hulk by defining the shapes of his ears. Draw a couple of lines within the shape of his ears to indicate the inside of them. Use the above image for reference when drawing Hulk's ears.
Step 20: That's it! You now have a nice sketch of Bruce Banner after he transforms into Hulk. You can stop at this quick drawing for a rough, sketchy look or go for a more finished look by continuing to the step below.