Thank you for downloading my reference sheet lines! Here are instructions to get you started:
The file you just downloaded is a high resolution .JPG file.
You can print this file on paper or color it digitally using software.
How to Color This File Digitally:
Open this file using your digital art program (I recommend Adobe Photoshop)
Set the first layer in this image to "Multiply"
Add a new layer under the lineart layer