Looks good mate. If you've got some Micro Sol, or similar, use some on a paint brush, and gently ease away at the edges of the decal film. At least part of it should lift slightly, allowing you to work the solution under the carrier film. I sometimes helps to also add quite a bit of water at this stage, which will help loosen the edges of the decal. Flood the under side as best you can then, using the paint brush, wet with water, you should be able to gently smooth out the decal. Any small wrinkles left can be dealt with by pricking with a pin, and applying decal solution at the hole with a paint brush.
A gentle smooth over with the brush, leave it, and it should settle down smoothly.