Those skins look mighty fine, but I'm not sure where your backpacks went
Also something you notice is something doesn't seem right colour/lighting wise because the trousers are very dark and the shirts are very light, so you could try making the trousers white or the shirts a slightly darker/duller red - or if you have knowledge of them try and edit the specular maps
Good so far Lime keep it up
Edit: Hope this was helpful!