In order to start an Art business you need a business plan. Copyrighting is also very important to own your own images. You can write your own business plan outlining finances and strategies. You should also start a search for manufacturers that will be able to produce your work and that fits into your plan.
I am starting a greeting card business. There will be cards for each season. The photo above is Christmas themed image.
The artist is able to run the entire business on their own. If you are just beginning it is best to start with creating your images. When I start my images I usually have an idea and I start painting an outline, do not be afraid to repaint over your work until you get it right.
I spent 2 days working on these images for a total of 3 hours and it is still a work in progress. It is a large piece however you may find new ideas while you are working so be patient.