[Crono]

Things to do:

Style the beach so it curves in a reasonable fashion.
Style the deep water so it curves in a reasonable fashion matching the curvature of the beach.
Style the grass-to-dirt tiles in a reasonable fashion matching the curvature of the beach.
Apply some grass detailing.
Have the cliff changing directions in a fashionable manner.

Now how you do any of these is where practice comes in, it would be time consuming to guide you on how to accomplish each of those.