Another option is to pay a graphic designer to do your artwork for you. If you choose to get a graphic designer, make sure you look for graphic designer who would be suitable for your project (As in has experience doing the type of design you want). Make sure you look at their previous graphic design work, discuss what you want from them, and see if this graphic designer will be able to achieve what you want.
There are many graphic designers that are willing to design your project for a fee, from the big design companies to the freelancers. I’d recommend using the second type of graphic designer, reason being they are cheaper and can often get the job done just as well. Many also do graphic design for a specific target market (EG for a niche type of music), so may actually have the edge over a bigger company as they can relate to your needs better.