You may get .psd* file of "Ladybug" Photoshop tutorial by making a donation. Put the tutorial title in "Add special instructions to seller" line of PayPal and it will be sent to you shortly.
Click Ctrl + Enter. Go to Select > Inverse Selection.
Cut selected part.
Add additional adjustments for Layer style (Drop Shadow and Pattern (Metal Landscape-Patterns)):
Create several circle selections in a new layer. Fill it with black color (Select all black circles using Elliptical Marquee Tool and deform them using Spherize Filter (Filter > Distort >Spherize)).