This is my very first digital lineart!
The lines are drawn with Paint Tool Sai and I must say that I am love with that program! It is so much easier to draw lines with Sai than with Gimp.
I haven't tried coloring with Sai yet but will do that later. ^^
I know these lines are not perfect but considering that I downloaded the program only yesterday I am happy with the result. I also tried to fix anatomical issues from the sketch and I think it looks better now.
Thank you everyone who gave me feedback!
I added a psd file to download so if you want to use this lineart for something, feel free to do so. The file includes couple of layers. I don't know how linearts should be done in a pro way so I just added flat colors on body and mane and tail in separate layers, lulz. If you don't need those just delete them and use only lines layer.
If you use this, please credit me and link back to this deviation.
Pose reference by venomxbaby