Postcard pretty, caught my attention right away. You did a fantastic job on that sun and the reflection of it on the underside of the clouds and on the water. I agree about the yellow vertical lines, you don't really need them, but if you were to "jag" them a little, this would be perfect.
drawn in 42 min
Only thing I'd change are the yellow streaks going down, other than that a lovely peaceful pic there Panda.