This is not bad at all. What I would do is stick a thin white gradient line in the middle/bottom of the sig and put it on soft light with lowered opacity to add more depth to the sig. Then use a hue/sat layer and just pull down the saturation a bit so the color isn't so bright and out there. This sig would be a little better if it was more yellow than brown too but this is nice. I see a lot of potential in this.
