Add a Drop Shadow to the merged layer with these settings:
Horizontal +3
Vertical +3
Opacity: 30%
Blur: 4
Color: Black
This time you can CHECK the box to create "Shadow on New Layer" if you want.
That's it. Your hearts are done. Now you can embellish with a Valentine message or frame your photos or create a sig tag!
Valentine greeting:Create a new layer to add your text. Add a drop shadow to your text to match the heart shadow.
The font used above is "Fiolex Girls". The little heart embellishments are part of the font. You can get it from Wanted Fonts.
When you're done, export your creation as an optimized GIF. File > Export > GIF Optimizer.
Save your original .pspimage file with heart and greeting on separate layers so you can easily change the greeting or use hearts for something else.
