Ancient Iceberg

An artist who reaches a level of technical expertise such that his/her personal style has emerged, developed, and solidified is faced with a range of choices: A. Continue with that level of competence and that particular style because (1) effort and soul went into attaining it, and (2) the audience has come to expect it and want more. This is not a bad thing. As I survey your gallery, you have accomplished this. B. Continue as is, but seek to attain greater growth in artistic insight by exploring something different, whether it be a new medium (photography to oils) or a new genre (landscape to portraiture), or a new technique. This also is not a bad thing to do, but only if your inner need for growth leads you to it.
C. Instead of changing medium, genre, or technique, grow as an artist by doing various series. For example, this melting iceburg that is 10,000 years old. Is global warming melting the glaciers? I personally don't know. You have access to glaciers. Do an in-depth photographic series that explores the question. If not this question, another one. Owls, how do they live? What can varied photographs tell us?