I understand your desire to get a dramatic look to your images, but to completely control your photos (in addition to the above mentioned printing controls) you really should learn to develop properly before tweaking for your desired results. Without determining your EI, and standard developing time, you really won't be able to adjust exposure/development to consistently get the results you're after. "Fine Art" involves seeing the subject, and having the ability to get what you want on the negative and then on the print.