Permissible and Impermissible employment

Q: I want to start a print on demand store that sells tshirts and hoodies, etc. All the marketing will be done by them, the only thing I'll need to do is design the items and upload my designed item on their store.

I want to know if it's permissible for me to design the hoodies, etc without marketing the product (which uses images of people wearing the item).

Q: I wanted to earn and bear my university and other expenses on my own so I was looking for online jobs. I came across a business named Forever Living Products. They give earnings by a pyramid scheme in which you have to recommend other people to join your business and become a part of your team and you will get paid. In this way you can earn a great deal of money.

As the growth rate in this business is very high, thus I found it to be a bit doubtful and I think some sort of interest is in involved in this business. Kindly guide me so that I can take my decision accordingly.

Q: My father works in an office where his work is to maintain proper supply of electricity, making and maintaining electrical plants and supervising others who do the above works. Part of his job is to inform his seniors about new plans and progress of the plans. For this purpose he uses digital slides for presentations.

I noticed that the slides that he makes, he uses pictures of animate object. It could be a requirement from the office that he must use those. Sometimes others make these type of slides and he uses them. And sometimes he makes these slides and passes it to others. I want to know, does it make his income haraam?

Q: Is it permissible for one to work as an accountant for shops such as Pick n Pay, Makro, Checkers? These shops sell halaal, as well as non halaal items such as alcohol and non halaal meat.