As AM stated, this is just two tiles.
Here is a quick tutorial on how you could go about doing this.
Open a new document with squared dimensions.
Use your guide lines to plan your pattern on your tile.
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On a new layer, use one of your selection tools to create one half of your pattern.
Here, I used the Elliptical Marquis Tool.
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Select your Brush Tool.
Use a large soft brush with a lowered flow to create the shading at the top of the tile.
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Shift + Command + I to invert your selection.
Use the Brush Tool to again add in the shading.
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Command + D to deselect.
Command + J to duplicate the layer.
Command + T to enter Free Transform.
Flip Verticle.
Grab your Move Tool and move the flipped layer into position.
Turn off your guides.
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Select/Highlight the top layer.
Hit Shift + Option + Command + E to create a Stamp Visible layer.
Turn off other layers.
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