Here's the unit image - change it to show how could it look.
For me it's too much hassle for little to no effect.
It doesn't add any strategic value, nor realism (unit can be damaged by poison and in many ways by attacks). Only a little flavour. Which by the way must not be very important to people, as
viewtopic.php?f=18&t=6634&sid=57d34cc20 ... c685f750c7 topic is not overly active.
And it would need tons of work - as there is no way to unify wounds as overlay (too different unit looks) it would need to be done separately for every unit! It would also discourage adding new units, as there would be one more image to do.
Not to even mention amount of coding to allow something like this and other technical difficulties.