I actually use several, I first square the image I like with SquareFX, and extend the background if needed. Or I'll extend the background with PicCollage and crop the image out there. From there, I use Font Candy, mainly for designs and shapes (like the box) and then for the text, which is basically what Font Candy is for; different types of writing styles. Lastly, I crop the image back to fit the cover size and PicCollage is actually the same size for the wattpad covers. It's a long process but worth while.