Today I use the Estlcam feature to carve the picture with a v-bit, hard to see in the picture but the cut looks more 3d not just a outline.
Not amazing but baby steps in Styrofoam, also carved it very small.
Downloaded a jpg.
Used inkscape for edge detection
Used inkskape to Generate the DXF file and save.
Opened Estlcam and selected each section I wanted to carve Chose to carve inside.
Saved cnc program in Estlcam
Open NC file in Estlcam and cut
see pictures below.
I am also trying jpg/bmp to vector conversion software called wintopo. They have freeware version and it seems to have lots of functions.