You may get .psd* file of "Clean and glossy Green Design" Photoshop tutorial by making a payment. Put the tutorial title in "Add special instructions to seller" line of PayPal and it will be sent to you shortly.
Make search box using Rectangle Tool.
Add several layer style effects.
Create small square icons for gallery.
Apply layer style effect for them just like in the examples below. Use Luminosity Blending Node for inactive icons.