Hi Leanne,
Im sure if I look closely, it looks as if you need to push the cuticle back a little bit more on some nails, which will help getting it nice and even around the cuticle area, and I think if your getting uneven streaky coverage it could be because your not loading your brush up enough, or your doing it to slow and the layer is drying as your still applying and you going over and over it is making it uneven if that makes sense, the way I get a nice coverage is to just get my first layer down, as good as I can then with the 2nd coat I clean up edges to make it all look nice and neat, and just use a brush with a bit of polish remover after to clean up any edges x