I'll take a look at the concrete texture. My day job is forming and finishing concrete commercial buildings so maybe that has something to do with it. It goes forward. The black things are guns. The thruster is partially hidden.
Ok, I took it to photoshop again. This time I made a specular map and adjusted some lighting. Is this looking more metallic. The concrete with moss was not the look I was going for. Andy
Now it looks like mossy concrete? I think you need to work up the specular highlights or even go one further and leave the diffuse map as it is and make a spec map to make it shiney underneath the scratches and dirt. The texture is a big improvement though I'm not too sure about the green. -caseyjones
Is this a future where spaceships are made of concrete? If so, pretty good! If not, then it needs a little work. The texture needs more variation in color. Metal has color, it's not just grey. Usually faint hues of blue applied work well. And some oranges and browns to even some of it out. It's looking a bit too grainy as…