how to like this shadow

[mohamede7177080]

Hello guys.

I'm Photoshop beginner, I want help with this photo

I want to learn how to make a shadow like this one

I brushed a yellow on it

Thanks in advance, and sorry for bad English.

[Nancy OShea · Accepted solution]

Create a new layer.

Use the Marquee tool to draw a rectangle shape and then fill it with white using the Pant Bucket tool.  See screenshots. 

Double click the layer to open the Layer Style panel. 

Click on Gradient Overlay. 

Give it a Black & White linear gradient with about 30% opacity and an angle of 90%.  Hit OK.

[mohamede7177080]

Thanks Nancy.