The model looks pretty decent. I kind of like the pants in the boots: reminds me of WWII infantry style.
The arms seem a bit short as they are. I think lengthening them a bit will help.
At the moment it’s slightly tricky to judge the texturing on the whole with the hair parts left flat- it offsets the rest a bit. But here goes:
On the whole the texturing is pretty good, but seems to suffer from being a bit too over saturated in areas (reminds me a bit of your cartoon work): the eyes and lips.
Add more variation to the white of the eyes. They are too stark at the moment. Possibly make the pupil and iris larger as well and desaturate the iris a bit. You can possibly ad a bit of fake shadow to the top area of the eyeball as well to add a bit more depth.
The shape of the lips seems a bit too stiff and puckered. Possibly widen them a bit and thicken the bottom lip- it looks a bit too thin from the side. The texture also seems too seperate from the rest, and seems a bit like he is wearing lipstick.
Other than thit it seems quite solid, and a bit too early to really judge. I guess you just need to try and avoid over saturating things. Going from one style to another can be tough but will also broaden your skill set and from what I’ve seen with you other work the texturing should be killer.
hope this helps some… I’ll keep my eyes open for further updates, shout if you need more help…