500x500 pixels will be very good.
Then download the shape from the attachment area.
Load the shape
Then select Custom shape tool, and draw the shape on your canvas
When you drag the mouse , hold down the SHIFT key. In this way you can create a symmetrical shape
Go to Edit > Transform > Perspective and draw the corners of the shape until you have something like in the following image
Hit the Enter key from your keyboard
Then press on CTRL+T ( free transform tool )
Then modify the vertical scale to 70%
Do not forget to Hit Enter on your keyboard
Now comes the funny part
You need to follow my shortcuts very carefully
With this layer selected press on:
1 - CTRL+J ( this shortcut will duplicate the current layer )
2 - Up arrow key
repeat 14-15 times this steps from above and you will have something like me
Now select the first layer we have created in this tutorial ( the layer above the background layer )
For this layer please add the following layer styles
This is my final result
I hope you like it. You can see in the following image some logo variation created in the same way
This set of logos are available only for VIP members