On the page behind the title page, you will draw and color with colored pencils a pinnate and a palmate leaf. That is page 2 [or whatever page is the next open page in your book. There is a set of calligraphic numbers on this post: https://mynaturebook.wordpress.com/2014/02/27/how-to-draw-the-numbers-for-your-book/
On the opposite page, draw the above border. You can color shade the leaves, followig the order on this post.
Decide where the light is coming from and shade darker and darker.