Waterdrops ...

I've colored the stamp with watercolor pencils, misted it with water and stamped it onto the cardstock. 
I used a fineliner to accentuate the outlines, an acrylic marker to add, and whiten, the circles in the heart of the flowers. . 
I stamped the drops in the background, and colored a few of them with the same watercolor pencils.  

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Inkerbell stamp used:  
from the sheet "Jij mag er zijn" 

Magenta products used:

85.013.O

42.233.O