Imagen no aceptada por problemas técnicos

[nacheis__]

Hola a todos, he colgado unas imagenes y no han sido aceptadas por "problemas técnicos" alguien me podria orientar para saber en qué me he equivocado.

Gracias

[Jill_C]

1) underexposed shadows and white balance issue

2) rock in forefront is probably not as sharply focused as it should be

[Nancy OShea]

In my opinion #1 contains too much sky and too much sand.  The subject is lost in shadows.

#2 has too many long shadows.