To make this on the Poster Wizard:

Step 1: Pick Your Poster Size.

Choose a size that will best fit your poster layout. A vertical layout will work best in this case. Find a clip art image of Mercury and upload it. 

Step 2: Pick a Background Color.

You want the color to enhance, but not overpower your information or clip art images, so choose a black background to make your bright colors really pop.

Step 3: Add a Border.

Add a neon orange wavy border beneath a red holographic wavy border on top on the left-hand side of your poster.

Step 4:  Add a Title.

Add "MERCURY" vertically in neon orange quick letters on the left-hand side of your poster. Then, add "HOT HOT HOT" in yellow, orange and red quick stick foam letters. After that, add "OUR CLOSEST PLANET TO THE SUN" as a title going horizontally across the bottom of your poster using red quick stick foam letters. 

Step 5:  Add Images.

Now you can add your clip art image and send it to the back. Resize it as necessary.

Step 6:  Add Text Boxes.

Add your information about Mercury as text boxes. Decide on a border color and font that will best enhance the theme of your poster. Adjust the text box sizes to keep your layout neat.

Step 7:  Add Shapes.

Add some gold holographic star shapes to give the appearance of the solar system. Adjust the sizes as necessary.

Step 8: Now, you are ready to SAVE and FINISH. When you are finished, your poster will be sent to you by email. Then you can decide how you would like to print out your poster.

Step 9: Add Lights.

To really make your poster stand out, add Poster Lights by hand on your printed image. To do this, follow the instructions on the Poster Lights box.