hope this helps for those that are interested!
the first thing that i do is open all the images that i want on the board.
then i open a new document. the dimensions will vary depending on the images that i am using. this one is going to have three images that are each a square, so these are the dimensions that i chose.
next, i crop each image to be a square.
after doing this for each image, i drag each one onto the storyboard document and resize it to fit.
then I use the line tool in white to draw a line between the images.
now, if i want to use these on the internet, then i do a couple of things to get them web-ready. the first thing would be to resize the document to 700px wide.
and then, with each image, i use the unsharp mask tool, with these settings.
and that's really it!