Fill 0% on the layer and apply Stroke option with the parameters demonstrated next table:



Make several copies of the last made heart, getting the same result as that one, presented below:



Now we shall use again the Custom Shape Tool (U) with its table that gives us the possibility to select the needed element.



The new figure is colored with #7D9DE5 and situated the position from below:



Apply for the new element Stroke option again:

 



At this moment we need to draw several more elements like the last one and position them out the same way as below:



Try to represent one more figure like this one, giving its layer this option Fill – 0%.



Select Stroke option with the same parameters from below:

 



We shall take now the Ellipse Tool (U) and represent a rounded element.



Gradient Overlay: