Now, let's adjust the angle as shown below:

The result should be similar to the image shown below:

With the landscape on a proper angle, let's resize the image so the image will fit our canvas. Activate the Transform tool (Ctrl/Cmd + T) once again and then resize the image as shown below:

The result of that should be similar to this:

Next, we will resize "ground" again to give the viewer the impression that he is standing just in front of the tub peeking at the sleeping child which will be adding on the later steps. To start, activate the Transform tool (Ctrl/Cmd + T) and resize the image as shown on the image below:

The result should be similar to this:

As of the moment, our canvas should have this image:

Step 3: Create the Sky

Now, we will add the gorgeous and glorious sky. Open the stock image: "sky 65" by night fate stock. Once open, activate the Move tool (V) and then drag this image to our canvas. Put this layer above the "ground" layer and then rename it to "sky". See image below:

After renaming it, let's now position the sky image. Position it as shown on the image below:

For composition purposes, we would need to resize the sky a little to get rid of that little gray cloud on the upper left of our image. Activate the Transform tool (Ctrl/Cmd + T) and then resize the image as shown below:

The result should be similar to this:

With that done, let's now fix the background and make them look like one image. Let's proceed now to our next step.

Step 4: Fix the Background

So we're going to fix our background to make it one seamless photo-manipulation. To start, we will darken some parts of the ground. Create a new layer (Ctrl/Cmd + Shift + N) and then name this layer: "darken 1". Put this layer below our "sky" layer by clicking on this layer and dragging it below the "sky" layer. See image below:

After that, let's ready the tools we need to paint. Activate the Brush tool (B) but before we start, make sure that the active Brushes are the default brushes. The default Photoshop brushes are shown on the image below, if that's not what you see, then follow the instructions below: