Hatching is a great way to achieve some dramatic effects, but knowing how to do it right takes a lot of time and practice, luckily as somebody who hatches pretty regularly I can give you some advice about how to do it a little better.

When you hatch or crosshatch special attention needs to be made to make the hatching flow around the form, this will maximize depth and form. As well, a smoother transition should be made between hard black shadows and your hatching, it should look like a gradient, not a sharp transition. when you make a hatched figure in a hatched background special care needs to be taken to make sure the figure doesn't blend into the background, i recommend a white outline around your figure or making your figure have a light area around them to make them stand out more. When hatching or crosshatching its important each ink stroke must not touch a hatch stroke running parallel to it, this breaks the flow of the hatching and looks amateurish. Theres a reason why people don't usually hatch things, its because its tedious and doing it right takes alot of time and a perfectionists eye! If this is the sort of thing you are interested in prepare for some long hours getting your hatching just right!