Im late to post this, but I made my wife a mother’s day gift using Drachenfeuer, my Glowforge Pro.
I tried out photo engraving and was impressed!
I learned a few things I’ll share here.
In short, I do not advise using mask for photo engraving.
The results looked great until I started peeling the masking off. Then, everything looked terrible.
I flipped the part over, removed the masking and reran it. Results were great!