Result:

heart health

I've also create a layer underneath the very top one and did a little brush work with color similar to background - see the layer box.

heart health

I've lowered the fill of the top one too: see the layer box.

heart health

Now I will turn off all the paint layers and make a new one, on the top. Make several dots: I use a dot brush tip.

heart health

Apply layer stiles to the curves:

heart health



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I've
  
also painter with red overlay color on the top of the heart to expose that reds:

heart health

And even more reds:

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heart health

The final part will be color balancing the colors on the whole image:

heart health

Tnx for reading and see you next time.

heart health

Download support file:
rc_curved_133.abr