-Background is relatively clean and made less obvious with bokeh (good)
-Focus is on the tree trunk (Good)
-Tree trunk is somewhat underexposed (Not good)
-Composition wise, rule of thirds has been applied, but the perimeter of the picture is not clean.
-Think about why you're taking this picture, and what makes the tree trunk so interesting.
-If you used evaluative metering, the backlight will cause your subject to underexpose.
-I'm glad you've taken your first shot. Now to find some REAL subjects. FOCUS! :bigeyes: