The 29-year-old star's tattoo artist, Kevin Paul, previously admitted he thinks a lot of his famous client's inkings are "s**t" but understands they are personal to Ed.
Speaking about trolls poking fun at some of Ed's tats, he said: "I agree with most of it, his tattoos aren't very good.
"And I take the p**s out of Ed all the time, when I'm with him, that they are s**t.
"They are! But every single thing that he's got is personal to him."
Kevin isn't a big fan of Ed's tattoo of Pingu - the penguin from the animated children's series of the same name - which Harry Styles also has, branding it "s**t".
He said: "Him and Harry Styles had Pingu tattooed on them and they had it done because that was the cartoon they liked as a child.
"And it does look s**t but it's what they wanted, it's a personal memory and it means something to them."
Kevin admitted working with Ed - who also has inkings such as a huge lion on his chest, a tomato ketchup bottle, and a gingerbread man - is the "best and worst" thing to happen to his career.
He added: "I was a big massive artist doing 3D-work and winning multiple awards.
"And then all of a sudden you end up doing Pingu the Penguin and f***ing gingerbread men on popstars.
"And all that client base just dies off, but the doorways it has opened for me are much bigger."
