Onekiwi, just to add my option, I use Inkscape to do what bits I do, they is a thing called Bit map trace, for the bits I do it works fine for me.
I admit if you get a poor quality image off google ect it may not work but if you scan a sticker in like in your pic it works fine.
You can choose to scan outlines,shades,colours...... I can't really give you any advise of how to use it as I'm no expert but if you type it in YouTube they will be loads of vids of how to use it (that's how I learned to use it)
Here's a image I copied off google and used bit map trace then cut it on my cutter (the JE one, you can see the 'J' isn't quiet layed straight!!!) I have done loads of stickers scanned in just no pics handy to show you
Ah here's one,not the best pic but you get the idea, all the sponsors decals are painted on and were either scanned stickers or google images.....
