The first point of note is that he uses Footloose's head. (Based on the small photos available at the time, I incorrectly refer to it as a Mercer head in the 2016 Rarities post that introduced this series to my site.) Tonnerre is the only European Force figure to use this head. But, other Footloose parts appear on other figures. So, it's inclusion in the line makes sense. You will note that the mustache is unpainted. I'm not sure if this is just paint wear or if the hairlip was intentionally left flesh colored.
Tonnerre is interesting because he differs significantly from the figure on the back of the package. There, the figure has a green shirt and dirtier blonde hair. Knowing the oddball stuff in the line, it's entirely possible that the figure shown on the cardback exists out there somewhere as a variant. But, the peach shirt is the only one I've seen. (Which, admittedly, is less than 5 of them....)
Here you can see additional photos of the figure. Tonnerre got his chest, waist and legs from the 1986 Dialtone figure. And, the arms are the standard arms used on all European Force figures. Tonnerre included a black Leatherneck rifle and a Dial Tone backpack done in the mottled green plastic that is the hallmark of the European Force accessories. The weird orange color on his makes him stand out among all uses of the Joe molds and creates a striking figure. He's just really tough to find...especially in good condition.