Rafterman
No longer a newbie, moving up!
I took these last May on my annual trip to Wrightsville Beach, NC with my wife. We're going again this May and I want to come back with some awesome photos that will be wall-worthy for our living room, which we're currently redesigning with a coastal theme. These are the types of locations/subjects available to me out there, so I'm looking for feedback on improving the pictures I have now so I get even better ones in a couple months. Please keep in mind that I took these with an entry-level DSLR (D3100) and was a bit more of a digital rookie than I am now. 
1) Sunrises
24mm, 4sec, f/16, ISO 100

2) Sunsets over the Intracoastal Waterway
105mm, 1/250, f/4.5, ISO 100

Sand Dunes
35mm, 1/2500, f/2.8, ISO 100

Birds
160mm, 1/4000, f/5.3, ISO 100

Thanks in advance.
1) Sunrises
24mm, 4sec, f/16, ISO 100

2) Sunsets over the Intracoastal Waterway
105mm, 1/250, f/4.5, ISO 100

Sand Dunes
35mm, 1/2500, f/2.8, ISO 100

Birds
160mm, 1/4000, f/5.3, ISO 100

Thanks in advance.