In just 3.5 minutes Melanie Matthews shows us how to produce transfers which can be used as a basis for paintings.
If you want to produce a series of paintings based on the same basic shapes this may just be the starting point for you.
However, if the process is too time consuming for your liking you can always print out your original sketch on your printer provided 4A is the maximum size you want. If you want to go bigger you may want to use two or more A4 sheets and trace your sketch employing carbon paper to achieve the desired results.
Hope you like my choice of the day.