It looks to me like you're improving, wich is really good! The more you do it, the better you will get What program do you use? If you use something like Photoshop you can play around with different opacity settings of your brushes, and also the blending settings of the layers, you can get some great effects like that
To be honest it's not really good, but the good thing is you're learning. When I first tried making textures, like many I did something like that. Just look at other people's texture packs and analyze it, you'll start to learn from your mistakes and create better textures.