I have created a virtual photo gallery using my favourite photos i have taken so far.
I used photoshop to place the images onto the original photo. I lined up the photos to the original photo frame, i then right clicked the image, pressed skew and moved the photo so it then fit the frame i used this process for each photo until the gallery was full.
I a lined the photo into the frame and then you make the photo the size you need to fit in the frame, if the frame is on a angle you need to use skew to create the illusion that the photo is on a angle.