Commenting request for A.P. Arty peoples

I only have one of my concentration pieces up here at the moment, the swan one, as my black dragon piece was made after my massive art photographing extravaganza. So instead of commenting on concentration elements, I was wondering if you guys could tell me what areas you feel I haven't fully explored, and should, within the 2D art trade. So far with art, it is usually been the case that once I've actually tried something new, like abstracted art, or painting in general, I realize I really do love it. So in my attempt to widen out, feedback on what you feel I should widen out to would be useful. If there is a certain style I should try that I haven't, or maybe a style I have done that you feel I would benefit from doing another piece like, etc. Pretty much, what breadth pieces do you think I still need? Also, any critiques on my pieces as a whole would be useful.