Lets paint

Depending on the sky you pick - morning daytime night time depicts what colors you will use. the time of day, brightness of day same with the ocean - depicts colors you will use. For instance, a sunset sky will be yellows purples blues maroon orange and red, your basic sunset colors. Next the ocean starting at the tape working your way down which is getting closer. Colors next to the tape will be deep dark blue like navy. Spreading lighter blues towards the bottom changing to dark greens turquoise, seafoam greens right where waves might end up. If you plan on putting in sand and waves crashing on the sand the last colors on the bottom of the painting will be adobe, shiny tea, snow cap white, and iridescent gold and shiny winter white. Layering these colors from the tape down using your spatula going side to side mixing all the colors together. Trying to prevent from making indentation with the card. Let dry. Do the sky with the same process mixing blues the lightest on the bottom of the sky and the darkest on the top of the sky. If you want wispy clouds, as you are mixing the sky drop in a couple of white or gray keep mixing from side to side. Voila! You now have a base. Completed step number one let dry. You have a horizon, a sky, and an ocean on which you can do most anything.