Hi, when you used blurred it is to make something none apparent or undisturbing for your main subject, the way you built this one you dont separate you main subject white and blue from the back ground light blue and pink that why it give no deep try it with the same bacground and give a good definition on your light blue and after that you can blurrr the white on top of it but not to much, practice, practice and practice that the best thing i can tell you AlRobi