Because this field is so new and qualified personnel in such high demand, the opportunities for advancement are excellent. A modest amount of natural talent is essential for any career in the arts, but for a career in the computer arts, you must also study, practice, and keep your skills current. For the entertainment industry, you must be able to work as part of a team.
Computer art requires the study of both art and computer technology.
Most small companies are looking for people with the versatility of Swiss army knives, while the big companies need absolute competence in the cutting edge computer technology they use. In the area of traditional art, you will need to understand composition, color theory, perspective, anatomy and design. Some of this can be studied on your own, while things like life drawing and sculpture must be taken in a class where there is a model and a teacher to critique your work. You will also need to be familiar with the various styles of art through the ages, as these are often referred to and used. For work in movies, a knowledge of cinematography and storyboarding is a big plus.