Bomaderry Creek...

The last set of landscapy photos from our Easter in the Shoalhaven. My daughters and I with cameras in hand went for some walks along the bushwalking trails that follow Bomaderry creek (near Nowra on the NSW South Coast). It is a very beautiful area and well worth the time to walk there (very good walking trails exist) and my girls loved the exploring - we were also lucky to have some water flowing there which enabled me to take some longish exposures for the water.
I'd be most interested in any feedback, primarily on the composition (and how I might improve) and also the processing.
The Curving Stream

NIKON D7000 + 17.0-50.0 mm f/2.8 @ 40 mm, 1.6 sec at f / 16, ISO 100 + CPL
The water flows underneath this interesting natural rock bridge
The Rock Bridge

NIKON D7000 + 17.0-50.0 mm f/2.8 @ 32 mm, 1.0 sec at f / 16, ISO 100 + CPL
Monolith Over Flow

NIKON D7000 + 17.0-50.0 mm f/2.8 @ 17 mm, 0.6 sec at f / 11, ISO 100 + CPL
The large mossy covered rounded boulders in the creek were really very interesting
Flows Through Moss

NIKON D7000 + 17.0-50.0 mm f/2.8 @ 22 mm, 3.0 sec at f / 11, ISO 100 + CPL
I'd be most interested in any feedback, primarily on the composition (and how I might improve) and also the processing.
The Curving Stream

NIKON D7000 + 17.0-50.0 mm f/2.8 @ 40 mm, 1.6 sec at f / 16, ISO 100 + CPL
The water flows underneath this interesting natural rock bridge
The Rock Bridge

NIKON D7000 + 17.0-50.0 mm f/2.8 @ 32 mm, 1.0 sec at f / 16, ISO 100 + CPL
Monolith Over Flow

NIKON D7000 + 17.0-50.0 mm f/2.8 @ 17 mm, 0.6 sec at f / 11, ISO 100 + CPL
The large mossy covered rounded boulders in the creek were really very interesting
Flows Through Moss

NIKON D7000 + 17.0-50.0 mm f/2.8 @ 22 mm, 3.0 sec at f / 11, ISO 100 + CPL