Ideas for adapting this design include stitching only the outline in green, stitching each Christmas ball in a different color, using variegated floss for the tree, and using metallic floss for the star. I am sure you can come up with other options for adapting the design for your own use if you let your imagination turn loose.
This free Christmas Tree design was inspired by artwork created by Helen South, About.com Guide to Drawing and Sketching. You can see the original artwork below:
More Clip Art for Christmas: