I was doing some testing for another user and had reset to defaults, so the feed rate was 1000 and rapid 2000. That is probably a little too fast for engraving with a 2000mW laser, I usually run 600-800 which would have an effect on time.
The trial is functional but limits to 10,000 lines engraving and 1,000 lines cutting and you can't save the generated G-code.
I have several licensing options, the most common and cheapest is $39.95 for a single PC non-transferable license. This includes updates for 1 year and additional licenses can be purchased at 50% off. I also offer licensed Nano's and a USB-Key "dongle" option for $79.95 (exc. hardware and shipping costs which vary depending on option and country).
T2Laser allows you to scale images and vector files, create simple Sketches and overlay on images. It also has tracing features to convert images to vector which for artwork (like the scorpion) would make it significantly faster as you could just engrave the outline.