It’s not impossible but would involve a lot of manual work, perhaps using transitions in the slideshow editor. Ideally you need Adobe After Effects which has the built in graphics and animation tools.
Thanks for the advice, but unfortuantly I cannot afford Adobe After Effects. What do I need to use in order to create the elements with PSE?
Would I need to use shapes, or brushes?
You could use both.
You need to create a template in the Editor.
File à New à Blank File
Set frame dimensions for width and height
Set resolution e.g. 72 for viewing on a screen.
Set background color to transparent and click OK
Copy and pase your artwork into the template or design from scratch using selections, color fill layers and text etc.
Use the move tool to drag and position each element. You will have to position them and resize them using the corner handles (hold down the shift key to maintain proportions).