I am quite familiar with that photo and "British-Israelism"
But a little knowledge proved to be a dangerous thing when BI accepted Edomite-jews as "Judah". Edomite-jews are NOT Judah!! Edomite-jews are NOT any part of the 12 tribes of Aryan Israel! They are evil perverted atheist mongrel Edomites who feigned "conversion" in the 2nd century BC so they could live in and eventually usurp, perverted and destroy the Kingdom of Israel... just like their evil perverted Edomite-jew descendants have usurped, perverted and destroyed the British Kingdom !!
That impersonation has been greatly facilitated and reinforced by the Vatican's creation of the letter 'J'. No one questions Jews, because they falsely suppose all Jews are just like Christ. They even claim Christ was a Jew.
And what did Christ say about those who pretend to be of Yehuda, but are not, and those who buy the lies? Revelation 2:9 & 3:9