Islam : Dogs are bad and pictures not allowed.

#004.054.539
Narrated Abu Talha:
The Prophet said, "Angels do not enter a house witch has either a dog or a picture in it."


#004.054.542
Narrated Sufyan bin Abi Zuhair Ash-Shani:
That he heard Allah's Apostle saying, "If somebody keeps a dog that is neither used for farm work nor for guarding the livestock, he will lose one Qirat (of the reward) of his good deeds everyday."