Tried out engraving a couple of photos.
They didn’t take long to print because they it’s a 3.5 x 3.5 ornament.
The adult boxer pic is on PG medium Walnut using GF settings of Draft Photo but I changed the LPI TO 195
The puppy is on PG medium Maplewood using original GF setting Draft Photo
I use Photoshop and converted it to greyscale and adjusted the exposure and B/C