I love sunrise and sunsets. I have a few myself ( doesn't everyone? ). The one thing I've learned with sun shots is to use the convenient bracketing setting. I personally kinda like the intensity of the sun.
The flowers are ok but a little dark and needs more contrast.
I kinda got what you were trying to do with the last one; capture the shadows from the sun in the sand. Unfortunately, I keep looking for the subject in your picture. Perhaps a sea shell.