You need to work on your blending side. Plus never ever just brush the bg and leave it. Give it some effects. And if you want to use some brushes, then never use them so clearly and brightly. Their main purpose is to create light and secondary effects, not the main course. Experiment with the different options like blurring, sharpening and other effects. For starters, go with smudging for the bg. The build upon that. I did the same. Overall, nice sig though. But you have to improve a lot. That comes with experimentation like a loon
