Some of the shapes are really jagged. The umbrella and handbag(?) mostly. And the sand ends, is that a dune, or the shore? The reflection of the sun should be longer, you could do some cool wavy effects on that. Everything lacks perspective too, what are those square things? If they're beach towels, you shouldn't be seeing them head on like that. And without shading, that beach ball is just an iron cross in a red circle.