Not entirely fond of the new pallete, but mainly because all plasma weapons and other guns are now a strange military green, rather than the chrome kinda look. I'm not very fond of THAT, but other parts look nice I guess.
The agricultural flamethrower could be good, but honestly I think it could use a MILD auto fire. Its range is so limited, the least it could do is hit hard at that range, but a single shot of 30 damage really doesn't cut it. I understand if its not a full 8 like the military grade flamethrower, but 4 or 5 would be fair, and make it a decent weapon. But currently, 25% tu for a single 30 damage incendiary shot with mediocre accuracy is a joke. Add in at LEAST 3 more shots for a volley, if not 4, so this can be reliable. Otherwise its much better off using guns or melee.
Remember, just because it doesn't have the same pressure behind it as a formal military grade flamethrower, doesn't mean spraying gasoline on someone wouldn't be less effective. Just its slightly LESS gasoline =)
By the way, I would like to propose perhaps a few of dagons guys, and possibly followers of the Apocalypse have these. It would really fit the unorthodox weapon style, and particularly would fit the tanky setup of the chosen, assuming you can make them properly aggressive with it..