I taught the girls the Reflection Technique in June card class.
This is a super easy technique that produces stunning results. My personal favorite stamp set to use for this technique is Lovely as a Tree.
The card base is Lost Lagoon.
To make this card stamp your image and then stamp it on a window sheet. Immediately flip it over and use as the reflection. Simply rub over the back of the image and it will transfer into the water!
The goose was stamped with Memento brown ink. The grasses were stamped with Mossy Meadow and the goose image was colored with Blendabilities.