Draw a Rose with Fiber Tip Pen

Outline the leaves, add veins and a little hatching, and you're done. Note that this is a very linear style of drawing - it's very crisp and hard, and not naturalistic at all. If I was going to apply an ink wash, I'd use a more broken line for a natural look. The outline used here will fight against any tonal shading. However, some strong, clean color might work well for an illustrative look.