This has been an issue for me. I often venture off in different directions. While I could force myself to stay within a certain “box” for commercial purposes, I know that box could also become a prison (as Martin suggests).
On the other hand, an identifiable “style” is a likely outcome of the daily discipline of working on one’s art. In time, a style should develop and become apparent on its own. It will not need to be forced. Having a recognizable style may be a mark of maturity and accomplishment as an artist — assuming the artist allows that style to gradually evolve over time.
Style as a mark of maturity and accomplishment may also be one reason the galleries and marketing gurus encourage anyone who wants to advance commercially in the art world to find a style and stick with it. A “signature style” provides the appearance (although not necessarily the reality) of maturity and accomplishment. As a result, some may feel pressured to lock into a style for commercial purposes, perhaps before a genuine personal style has emerged on its own.
In the end, this is one more facet of the age-old tension between art for art’s sake, and monetary and public success. I know few people who have no need for the money or the sense of approval and respect for our work that an occasional sale can provide. Each must resolve the tension between commercial success and artistic freedom in their own way. I will be interested to see how I resolve it for myself.
We no longer trust beauty as a serious means of investigation. But it can be ... In fact, beauty can be incendiary; it can be subversive; it can make us cringe.
-- David Maisel, Photographer
"It is the function of art to renew our perception. What we are familiar with we cease to see. The writer shakes up the familiar scene, and, as if by magic, we see a new meaning in it." -- Anais Nin
“The more clearly we can focus our attention on the wonders of the universe, the less taste we shall have for the destruction of our race.” -- Rachel Carson