Thought I'd upload just the lines and shading of my piece from last night. Feel free to use it. :) Just be sure to keep the signature and mention me in the description as the creator of the lines/shading.

To use, make sure you're in a program that allows multiple layers. Save this image to your computer, and then go and open it in the art program of your choice. It should pull up as one layer. Now, you're going to want to find the option for making this layer transparent. For Paint Tool SAI users, make sure you have this layer selected and then go to Layer (L) --> Luminance to Transparency (O). It will make this layer transparent. Now, you can add another layer, pull it below/behind the lined/shaded layer, and color on it. :)