I've been learning a lot about creating an ambience for various events recently as I also work part-time in a pub (as well as what I do on this site).
One of the key things required where I work is about mood lighting. How the lighting can be varied based on the time of day for the right "feel" for an event. For example, we start to light candles when it's raining or as the sun starts to set, just to pull in a more romantic mood, less gloomy. We also have lamps in place throughout the day to enhance the gloomier spots and make them more hospitable. You can find a variety of means to achieve this across the Moondial's Madness collections.
Enjoy and I hope you find what you seek.
Geralidne aka Moondial