My favorite is either the small red flower or the one with the statue on the left of the frame. However, the flower one could be improved by not setting the subject dead center. Next time, focus and recompose so the flower is at a more photogenic spot (think, "rule of thirds"). Also, with the statue, I would have used a larger aperture so that all of the grass is blurred and zoomed out to capture the entire face.
Some of the other flower pics suffer overexposure and underexposure problems. But not to worry. This can be easily corrected by using different lighting and/or compensating manually with your camera. Alot of my pictures have the same fate. Just experiment with the lighting and exposure settings.
Good luck, and welcome to the forums!