To cast a mirror shadow, follow these instructions:
Step 1: Open the image in Photoshop, click on the Marquee Tool (1) => Rectangular Marquee tool (2) => Select the object to create shadow (3) with this tool.
Step 2: Use the commands Ctrl + C and Ctrl + V to copy the object area you have just created. Next, click on the layer just created (1) , press Ctrl + T to select the Free Transform command and move that layer below the original layer (2) as shown below.
Step 3: You right click on the layer just edit (1) => Flip Vertical (2) .
Step 4: Click on the Opacity (1) and reduce it to 30-40% (2) as shown below.
Step 5: You localize the object as shown with the Rectangular Marquee tool (1) => Blur (2) => Blur Tool (3) .
Then right-click on the screen and set Hardness at 30-40%. Next, you left click and move the mouse to blur all the areas you have selected.
Step 6: Click on the fill tool (1) => Gradient Tool (2) => select the black and white gradient style (3) as shown. You can choose different color gradients depending on the object and image object you use, but you should set the gradient color to a maximum of 2 colors to ensure light harmony.
Next, left click and draw a line from the bottom to create light colors.
Note: To best fill the color, you have to see which side of the image your subject is facing the light to decide to fill it in that direction. If you do not know much about gradients and how to fill them up beautifully, read through the article below:
http://TipsMake.vn/to-mau-chuyen-sac-trong-photoshop-huong-dan-dung-gradient-trong-photoshop/
After a successful color cast, our image will be a bit more "magical" than the light-dark effect, as if shining light on.
Step 7: You add a few small details such as borders, background color . As shown below, I use the Brush tool to draw more borders to the sides and blur with the Blur tool to make it feel like a sample. are placed on a very shiny surface.
With the basic sharing on how to create mirror shadows in Photoshop, hope readers will have design works that bring "depth" and more vividness. Good luck!