Yes I designed all of the above (I do use stock material for "components" within my work) - however Its all licensed through shutterstock and paid for - so there are no issues in terms of infringements.
I'm not really interested in doing custom work as I am at the moment busy with a number of big projects (moving my business); among other things.
I enjoy the creative work; but right now I have to focus on getting the not so fun stuff accomplished... then I can think about getting back to what I love
In the mean time enjoy and feel free to use. I may most one or two more.
(For a lot of my work I do multiple mock-ups) Many of which never see the light of day; but are actually not bad...
Cheers!
Strato