Hi,
I am a freelancer , doing work from last 4+ years and created so many sites with full design work and I am good with Logo Design, Banner,Business Card,Info Graphy,Letterhead, Website Mockup,T-shirt Printing,Sign Board Design, Flyer, Brochure and you can say all kind of design work. Below is some sample logo link you can see it.
Mock up:
http://click4demos.in/demos/#filter=.layout-design
And so many. So I can easily create your Mock up. So if you are interested in my proposal then please let me know. We can discuss more for this.
Thanks,
Hope to hearing from you soon.