User blog comment:Sprinklemist/Sprink's 20,000th Edit Blog/@comment-1306917-20111004053158/@comment-4933101-20111004150855

I found:
 * 1) Katrina's pants color;
 * 2) Katrina's necklace color.
 * 3) Stevie is paler.
 * 4) Quintin split his eyebrow.
 * 5) Lisa has a evil glare. >:)
 * 6) Stevie has no hair in his arm (behind Quintin).
 * 7) Quintin's eye color.
 * 8) Lisa's hair is shorter.
 * 9) Quintin's pants color.
 * 10) Lisa's collar color.
 * 11) Stevie's pants color.
 * 12) Quintin has a goatee.
 * 13) Stevie's pants changed color.
 * 14) The sky is darker.
 * 15) Apepread a three (?) in the right (behind Katrina).

Well, I found a lot. :)