Sprite Stitch Board!

Hi all! I'm hoping someone can help me out with a pattern from the boardgame King of Tokyo. I'd prefer either 18 or 16ct, although I can manage 22 if it will keep at a more reasonable size. I'd like to maintain as much of the color on Gigazaur himself as possible, so provided there isn't a boatload of confetti stitches, I don't have a hard color limit. If possible somewhere around in the 8.5"x11" range would be ideal (it doesn't need to be exact) but if that will cause too much detail loss I can go bigger. I'm willing to be flexible to maintain as much quality as possible, I just really have no idea what's possible with the image I have. My attempts with KG-chart have been less than stellar lol. Thank you to anyone who's willing to try!!

It seems like 78 was the magic # of colours in kg stitch. I think it looks good but it you need less colours I could try to reduce it some. Also let me know if you want me to remove the two cars, they look okay but if I were stitching this I would want them removed.

The cars do look a bit iffy, but I can just not stitch them when I reach that point, no need for you to spend the time removing them. Thank you SO much, I can't wait to get started on this!