Inkscape Tutorial: Flat Vector Landscape Design
http://www.youtube.com/watch?v=3wrnTdSqfSk
http://www.youtube.com/watch?v=3wrnTdSqfSk
http://www.youtube.com/watch?v=s41_-qsmA7s
http://www.youtube.com/watch?v=s-kPg4vYKfk
http://www.youtube.com/watch?v=WgebeuJH8QM
http://www.youtube.com/watch?v=WgebeuJH8QM
http://www.youtube.com/watch?v=_9ZHWHMfz4k
http://www.youtube.com/watch?v=tT_xtUpMm7I
http://www.youtube.com/watch?v=yy_ocPwsVQM