Comparing pictures

OK so let me explain these pictures. The first two are of Kaleb and Logan. Kaleb is on the left at 21 months and Logan is on the right at 21 months.
The second two pictures are of my mom and dad. The first one was taken at Sea World in 2005 and the second one was for Christmas last year. The last two are of Brady and I. The first one was taken for Easter this year and the second one was in 2005 at SeaWorld.