here is the link for the lines I used.

http://fc03.deviantart.net/fs71/i/2012/024/b/8/free_gallop_lines_by_s1088-d4njhik.png

these lines are free to use on howrse! I painted them in using gimp and a tablet, it took 3 days to complete, last time I tried to enter it somebody flagged it and I was blocked from creation space:'( I tried Emailing howrse about it but they never responded:/