Pair 303:
1. Swapped the positions of Uxie and Azelf
2. Merged some of the red chains together, roughly level to the bottom of Palkia's right-side shoulder.
Saw nothing on Palkia. Figured it must be the chains. Took longer than expected, for how much it stands out (but not that long).
Pair 304:
Swears on seeing this background before in a past pair, although not with Giratina. May look through and edit in which one.
Edit:
Pair 59.