is this free for commercial use?

hi, is 100% free :)

Not 100% free. Why you use images of other authors?

http://www.shutterstock.com/ru/pic-92269081/stock-vector-medieval-knight-head-in-helmet-vector-illustration.html?src=_tlEZwlYO4iQMIIWId1wKQ-1-1

http://www.shutterstock.com/ru/pic-47677630/stock-vector-ancient-angry-viking-warrior-as-a-mascot-or-tattoo-or-logo-template-jpeg-version-is-also-available.html?src=FI6n_r0Bgzgi-kojnSafhg-2-39

http://www.shutterstock.com/ru/pic-104699747/stock-vector-nordic-viking-black-white-vector-illustration-vinyl-ready.html?src=FI6n_r0Bgzgi-kojnSafhg-1-59

http://angelfire7508.deviantart.com/art/Spartan-Soldier-2-original-50827521;

???

which ones are 100% free of warriors by woodcutter