Tricorns
Generally speaking, this mods' tricorns look more like tricorns of the 1770s and 1780s, not like those worn during the AWS and SYW. Of course, you cannot draw a strict line and there was quite a lot of variation at any time, but still I think that tricorns could be improved.
The tricorns on Moriers paintings (War of Austrian Succession) have very "high" tips (so that you can't see the skull cap of the hat through the opening of the tip). Actually, these hats look a bit like paper ships. The brims of the hat are slightly bent inward above the skull cap and the tips themselves are u-shaped, which results in these high tips. Here are some examples plus a strange sketch of mine. In two pictures you get lower rear tips (left hand guy on the 1st picture, plus the right hand side picture below the 1st picture):
If you take a look at the hats on some Seven Years War paintings, you'll see that the hats seem to be only slightly different. The front tip is still very high, whereas the two back-tips are a bit lower and they wander further to the rear/backside of the hat. Consequently, hat is probably a bit longer/flatter than the Morier-ship-hat.
The hats of the hannoverian troops in the Gmundener Prachtwerk (1761) still look more like those of Moriers' paintings (and look at those gorgeous pommels! Don't you want to make some hats for german factions?
Including some oak leaves on the Austrians' hats?):
Now let's compare that with the hats in ETW. These are the models of Joedrecks 7YW mods Austrians- I've been messing around with the textures a bit. I think that the hat might still be a vanilla hat? What you can clearly see (apart from the musket being too long and the bayonet too chubby) is that the hats' tips are too low, almost at the same height of the skull-cap's basis. And the flaps are not bend inwards/over the skull cap at all - they're perfectly flat.
The hat of the Guardes Suisses (which you seem to be using in this mod) looks best of all hats so far, but the rear tips are still too low.
So, to get a more authentic tricorn for the period, I'd bend the brims upward stronger and bend them inwards a bit which lets the tips get the u-formand makes the back tips wander upward. I tried to indicate this in this picture best as I could:
This uniform plate is very accurate if you compare the tricorn to contemporary depictions. The hat is assymetrical (the left rear tip seems to be high, the right one low; maybe the soldier is just waering it in a crooked manner), just as many of the hats on the pictures above.
Muscles and clothing
Well, to give us an idea of their understanding of total war (waaagh!!) and total soldiers (waaagh! roar! Banzai!), CA provided us with tough looking, beardy body builder-soldiers. I don't even want to start that this definitely doesn't fit the epocs' over-sophisticated and dainty idea(l) of manliness. However it looks quite funny and ridicolous how these Arnold Schwarzeneggers have been equipped with powdered whigs and squeezed into Juste au Corps. Initially subject to Hogarths line of grace, these poor habiliments have been deformed to make them fit the anabolic butchers.
I guess that it is impossible to make models a bit less brawny as it would require changing bones and, thus, animations?
Last but not least, I noticed that the laps of ETWs Justes au Corps open up too low. As a consequence, the main function of the laps (namely to give more flexibility and allow easier movement) is ruined. I can still hear the tailors' laughing while the muscly penguins waddle into battle.