The glowing could be a couple things. A misplaced light, too high res of an image and you’re getting banding or flicker, or perhaps the light transmission is turned up under the images materials tab. I would have to see an example to tell.
By biggest tip for your project would be to use the sequence layers option. Especially helpful if you’re going to be doing the same move to each photo. Make the photos larger than needed so that you can zoom in on them.
Simple Example:
1. Stack all your photos into the timeline in the order that you want them to appear. 1st one on the bottom and then sequentially going up, and set them all to be 4 secs. Your last photo should be on top and all of the layers should be starting at frame zero.
2. Select that top photo and hit the “S” key.
3. Create a keyframe on the first frame and make it 100% and another one at the end at 105%. Should make a zoom in effect.
4. If you like what you see – copy those 2 keyframes and paste them into all of the other photos.
5. Select all of the layers by clicking on the 1st photo (bottom) and then Shift+click the last photo (top one).
( This is more important than it sounds, because if you do the opposite, the photos will play backwards.)
6. With all of the layers still selected, click the Animation menu up on top.
7. In the Keyframe Assistant under the animation menu, click on sequence layers
8. Select overlap, make the duration 20 frames, and make the transition be dissolve front layer.
9. Hit okay and voila! You have a slide show.
10. Have fun and try tweaking the speed of the scale growth, throw in some rotation keyframes, and adjust the anchor point to emphazise the focus point of each shot.
Another tip is to add a very slight verticle motion blur in Photoshop to avoid flicker.
Thats all I got for now. Good luck!