We’ll get this time the next picture:

The same parameters will be applied for the neighboring layer

Next we’ll choose the Ellipse Tool (U) and represent a circle which must be placed under the layer containing the hills. The circle represents the sun.

Set Blending Options>Outer Glow as below:

Next we’ll draw the rays of the sun, applying for this operation the Pen Tool (P), placing the rays under the layer containing the sun itself.

Fill-0% for each ray

Blending Options>Gradient Overlay.
The Angle may be turned around, depending on the ray’s direction, from the central part to the top.

On this stage we’ll get the next picture:

The same operation should be done with the rest of the rays.

Create a new layer (Ctrl+Shift+N) and download out of Internet the brush, named: The_Grasslands_by_midnightstouch.

Select the brush of black color to represent the field’s flowers and the grass by combining and alternating the process of drawing the plants.