Here are the promised pictures (sorry it took me so long to post them)
The one in the middle is darker than the rest, but pure welsh harlequin. She is the only dark one I have, the rest are lighter in color. But that's why I think yours are simply darker colored harlequins
The one in the middle is darker than the rest, but pure welsh harlequin. She is the only dark one I have, the rest are lighter in color. But that's why I think yours are simply darker colored harlequins
