The people you surround yourself with play an important part in the overall success of your art business. The accounting and finance world can be complex and is ever changing so it is important that you get good advice in running your business. As your business grows, so may your needs for additional or different kinds of financial advisors. You may need financial advisors for different purposes and in many cases it may make sense to use a specialist. It is highly doubtful that a good bookkeeper or even CPA can fill all of your needs.
You need to make sure that you have access to and consult financial advisors as you need them. Whomever you choose to help you with your accounting and finance needs, make sure that there is a high level of trust! A good financial advisor will explain things to you and help you understand but remember, understanding of what you are getting into is up to YOU.