Please let us know the application that you are trying to use to sketch, my recommendation would be to start with Adobe Photoshop Sketch.
Moving this discussion to Adobe Photoshop Sketch for more information.
You could definitely pull this photo into an image layer in PS Sketch and trace over it with a pencil tool in a sketch layer.
Do you have an Android tablet? Adobe Photoshop Sketch - Android Apps on Google Play
Or an iPad? Adobe Photoshop Sketch on the App Store