Many of these are made by layering multiple graphics in a stack. Your first image appears to be of this type of work.
I just googled it and this is just an example of what can be done with layers.
Engraving the depth of the first image, probably isn’t going to happen. For multiple reasons… That would be more like a milling machine type engraver.
The second image or something near it is probably possible, but there is no color except for the materials with lasers…
Generally speaking, photographs are about the most tough project to get right… so it takes time and patience. Might want to watch a video like this one from Laser Everything for photo engraving, it’s one of the best. I usually recommend it for anyone that doesn’t really understand how to get the right interval when using a laser… It’s done with a fiber the technique works with any laser and any material.
There is really no difference, a engraved line is the same as a cut line if it’s deep enough. This is controlled by the speed/power settings within Lightburn.
The problem with going deeper is that it takes much more time burning and easily burns up areas you don’t intend.
You only mentioned the Ruida, so I suspect you are looking at a co2. The only real option for 3d type engraving is the grayscale in Lightburn, which works fine, but is very sensitive to settings and material.
Here is a thread you can look at…
Good luck
