Hi Karen... Sunsets and sunrises can be a challenge, but well worth it. Since you hadn't started painting but have now..I am sure you could critique some of this yourself quite well eh? If you decide to try this one again..maybe the following would help.
Straighten out the horizon line..
Either shorten or lengthen the mans shirt so it doesn't line up with the floor edge.
Don't try to paint the flowers in over the
color already in the water..results in "mud".
Let the colors of that sunset reflect in the water.
Hope I am not being tooo critical here, but I know from your postings that you are eager to push forward with your watercolors. I do think you have conveyed the "feeling or emotion" we all can relate to regarding sunsets like this ..
Keep painting, you are off to a great start!