Handmade cold postcard

My first one got lost in mail, so this is a remake and resent.

Prompt:
To create one monochromatic postcard from the cool colours: blue, purple, violet, maybe green.

postcard ingredients:
card board ~ recycle
recylcled envelope ~ blue
magazin cut out
folkart acrylic paints ~ violet pansy, baby blue, coastal blue
golden medium ~ matte regular
pen ~ blue