Nice work, and I can see that you are already getting some great feedback
Now, I don't really know exactly how cry engine works. In many engines, though, it's better to have the textures on separate sheets, especially if you are making tiling textures for the wood plank (which you should.) for planks, you can also actually model out a few of those. A common practice is to model and texture 2 - 3 versions of a individual plank, use them over and over again, and stagger/scale/mirror them whatnot. Make sure you break the silhouette to both add interest and give a better sense of how things are built, kind of like in this reference picture: http://fc04.deviantart.net/fs70/f/20...ng-d2y4yli.jpg
Keep up the good work!