A series of images that compare Hong Kong with Mainland China, which many Hongkongers simply call “China”, are spreading quickly online and generating some backlash from Mainland readers.

The images were first uploaded to a Facebook group called Local Studio HK, which has other similar-themed materials on it. It comes at a time of tense relations between the Mainland and Hong Kong, including last year’s Occupy movement, the voting down of Beijing’s democracy proposals, and more. Relations are so frayed that Hong Kong people booed the Chinese national anthem at World Cup qualifying games played in the city.

The artwork, though, is the latest manifestation of Hong Kong people asserting their own identity as not being part of the Mainland, which naturally doesn’t sit well with some Mainland people who have seen the images. Maggie Chou left this comment on Facebook:

“I understand HK is going through a difficult time right now. You have every right to be angry, but if you are angry, be angry at the government and the communist party. Posts like this will hurt mainlanders and make mainlanders think HK people are arrogant. I know you are proud of your distinct identity, but please don’t do it on the cost of others.”

You can see the collection below.