Zhang Tianhang, a pet photographer based in Beijing, has taken photos of over 10,000 stray animals over the past eight years. Working with animal shelters, he is determined to raise people's awareness of these abandoned pets and find them a new home.

"You won't believe these are photos of the same dog," Zhang said, pointing at two pictures showing a dog before and after a complete makeover. "The animals feel so much happier if someone cares for them."

This lucky dog got adopted by Chinese actress Gao Yuanyuan, which made Zhang believe in his cause even more. "Every dog is adorable. We want people to see that and give them a home," he said. "You just need to connect with the animals, let them trust you."

Many of Zhang's "models" have been adopted by local people, and some even start a new life overseas. Zhang hopes more people will consider adoption instead of buying a pet at the store. "It's a very big responsibility, usually over 10 years," he said.

In spite of objections from his family, Zhang chose to start a photography studio in Beijing in 2011 rather than find a steady job.

"It takes a long time for people to understand this profession. Now with online promotion, I have been receiving more and more orders," he said. "The clients now have to wait until next year for an appointment."