I think your lights could look a bit more glassy. Glass has very small bright specular reflections. You want to probably put this over a very bright internal glow which is inside the light bulb.Consider thinking in materials and how different materials reflect light differently. A rubber ball will reflect more shades of light than a glass ball. When you are attempting to light a material it is best to think in terms of how much light is reflected, usually the more rough the material the more amount of light shade colors you need. It is hard to do with so small lights but you can see that with mine I made a very small specular reflection on each glass bulb. Photoshop tends to make blurry reflections if you are just smudging things. It is great if you are doing rubber or leather but man made materials if shiny are going to have far fewer shades of light reflected because the surface won't scatter light so much.
