Donald Trump's recently released NFT collection, which has made millions of dollars, has come under fire for allegedly using copyrighted photos. 

What Happened: Some of the 45,000 NFT collection's photographs, according to Twitter users, look suspicious.

Several of the designs seem to be Trump's head on images from stock photography, small apparel business websites, or even clothing available on Amazon and Walmart.

One design, in which Trump was depicted as a fighter pilot, supposedly came from a Shutterstock photo.

On Twitter, a commenter questioned if Trump had obtained permission from Reuters before using a picture of the former president playing golf that was taken by one of its photographers.

“Even the folds in his pants are the same, lolz! Did Reuters greenlight this? Yikes,” the user said.

Read also: If You Invested $1,000 In Donald Trump NFTs, Here's How Much You'd Have Now

Some people speculated that Trump would be sued for copyright infringement over the popular digital trading cards.

Why It Matters: The former president's "major announcement" last week turned out to be the release of the NFT collection. They were sold at a price of $99 per NFT, and all 45,000 images were quickly purchased.

The digital trading cards show Trump as a variety of characters, including a superhero, an astronaut, and a cowboy.

The cheapest NFT, according to Opensea, is 0.31 Ethereum (CRYPTO: ETH), or $369.36 at the time of writing. So far 6,619 ETH, or $7,799,221.03 worth of the NFTs, have been exchanged in total.

Now Read: Trump's Popularity Among Republicans At Lowest, Reveals Poll — But Data Shows There's More To It

Photo: Courtesy of Gage Skidmore on flickr.