You have created a pleasant mound shaped scape here. But for an aquascaping contest you need to remove all the equipment from your tank and make sure your water is crystal clear for your final photos. Also you want to make sure that your fish compliment your scape. For a contest tank it is best to have a couple of species of small schooling fish in a smallish tank like this at most and not over-fill the tank with bright colorful fish that distract from your scape.
