This card inspired me to make the cards pictures below
I used a coloring page from here, sized it [by right clicking/copying/pasting in Microsoft Office] and colored it with my bic markers.
I then applied Versa Mark to the image and covered it with Kaleidoscope transparent embossing powder. Matted the shells in blue and light tan.
The background was stamped with a sea shell from By the Sea Sentiments (MSE) in brown and blue. Sentiment from the same set.
Here is an up close of the shell you can see how it sparkles!