Your good friend transparency
Whelp - for the scotch tape thing, if you get a tiff of scotch tape, just put it over the image (in Pages), lower its opacity, then group it with the object. Nice and simple.
Nice frames - make a rectangle. Give it a wood-grain tile. Give it a black shadow at 315 degrees with a decent offset and blur (6 and 10?). Put the picture inside it. Give the picture a white shadow at 315 degrees with a low offset and a low blur (to make it look inset - start with 2 and 2, then play). Group the whole thing. Rotate it 15 degrees or so. Bam - you have a beautiful picture in a frame.
Photoshop handily avoided (granted, I only spent 10 minutes trying to learn it before throwing my hands up, but you may not be as afraid of it.)