Grubby Oak Tree Card

Here is the card I have made for the  Colours and Sketches sketch challenge this week.  I don't like it very much, it has not turned out how I wanted it to.  I had the idea of using the Oak tree from Stampin' Up's Lovely as a tree stamp set and I wanted to do torn edges because I like the torn paper effect.  I thought I would sponge the edges with a dark brown ink, I used Creamy Caramel, but once I had done it I didn't like it.  I thought it just looked grubby.  I mounted it all on a background paper I had made using Tea Dye Distress inks, so I think the whole effect is quite dull. I sprayed gold mica on to the background but that hasn't shown up at all.  I think I should have used a different colour for the edges.  Any ideas?  I did think of colouring in the tree, but that meant I should have coloured in the bee and leaves as well and you can sometimes make it worse trying to make  it better, so I left it.  I haven't got time at the moment to try again, so I am submitting it to the challenge.  You never know, someone might quite like it.