Hey there, I was hoping some of you could help me with a couple of my tiles.

For my grass, I attempted to follow Kiwinuptuo's texture tutorial, and I think I did a fairly decent job with it. My problems are 1) the grid is still kinda there, and 2) it doesn't feel like very realistic grass to me. As far as the grid goes, I think it's because I have two larger clumps almost horizontal with each other, and then smaller blades of grass below them. I'm not sure what exactly it needs to feel more realistic to me, but maybe it's the fact that my blades are more like leaves, which makes it seem like a caricature of grass, rather than real grass.

These are my wooden planks. I think that they look pretty good from a distance, although someone has said they look a bit more like bricks than planks. Up close is where they start to fall apart, I feel. It could just be too much noise, I didn't use any noise generators, but there are a lot of colors in there. I tried to give it some structure, primarily horizontally to give it a wood-grain feel, but I'm not sure how well I actually succeeded there. Again, I looked at Kiwinuptuo's texture tutorial for inspiration, but the planks there have the same sort of not-quite-realistic quality that bugged me about the grass.
Any help you guys can give me would be extremely appreciated!