I think at least it should be a cherry blossom.on the package from Studio Light (STAMPSL378) it's coloured blue and maybe meant to look like something else,but I see cherry blossom lol.
I made the card for the AAA Birthdays Challenge: use watercolour.
I stamped the image with My Favorite Things Extreme black ink, the sentiment is from Simon Says Stamp (Birthday Balloons) and colored it with Talens Ecoline, a fluid watercolour medium. Then applied Spectrum Noir Sparkle ink (clear) on top.
Adhered the watercolour panel to the cardbase.
For more information on the AAA Birthday Challenge, see this.