5 custom vector design

There is too many designers in their work using custom vector design, 
they began work in the form of vector and ends with the final touch that sometimes is very fantastic.
Next I show 5 custom vector design of the work of my designer friends who make this work with custom vector design.
some of the work below looks very exclusive in my opinion, what do you think?
if you want to view or download another free custom design vector, you must visit the blog posts of my friend  at graphic-design-portfolios
thanks for visiting