Linda (#75449) to answer your question, yes, you can use guides to make the element of the same size (you will actually see that technique in the next lesson).
Susan (#75453) glad to see you are experimenting with those background papers. That is something you can definitely do with PSP.
Jean (#75455) welcome back. Your heart candy can probably have a larger shadow as I think it is a little thicker than the other elements. (#75457) Some of those shortcuts are often forgotten. Many people actually don’t use them; I wonder why.
Liz (#75462) is that a windmill that you have visited? (#75472) For the middle image, you might want to consider straightening it especially due to the edge of the wall being so close to the edge of the photo.
Suzanne (#75464) glad to see you resized the photos without distortion.