You may get .psd* file of "Fruit bulb" 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.
Create shadow of bulb.
Copy multiply layer and place it above bulb layer.
Transform it using Free Transformation and Distort.
Erase redundant areas using soft Eraser Tool.
Choose Filter > Blur > Gaussian Blur.
Opacity is 30-40%.
Create a new layer.
Paste image of segment of lemon.
Transform it.
Place layer of segment above bulb layer.
Soften the distant plan of segment using soft Eraser Tool.
