Top image on home page "Tired Teddy" source Wikipedia at  
www.en.wikipedia.org/wiki/Image:Old_Teddy_Bear.jpg
Said to be a photo of the original teddy bear.

Second image on home page "Cool Koala"
photo and copyright owner Hshen Lim
source www.istockphoto.com
 
Bottom image on home page "Sound Asleep Koala" 
photo and copyright owner Peggy Chen
Source www.istockphoto.com