Dear Sir,
Please see my work samples in my portfolio for your consideration.
https://www.freelancer.de/u/Jowelk.html?utm_expid=294858-168.DnP79XqVQVaNKSrww6NCmA.0&utm_referrer=https%3A%2F%2Fwww.freelancer.de%2Fdashboard%2F
Please send me your image and tell me why you need a vector file for printing. Anyway, I will convert it for you.
Yours sincerely.