The fixtures need to be high in the tree (the more directly down the light shines the less glare). All fixtures need to be shielded (shields are ‘cones’ that eliminate light pollution) from the main viewing area or where you will be the majority of the time. All wires need to be hidden from the main viewing area. Normally cool lights are used on softscape while warm lighting is used on hardscape. Everything does not need to be lighted. Too much lighting can create a visually chaotic scene at night. The reason behind this is due to the fact that at night you only look at what is lighter and if too much is lighted then you lose the drama. Subtle is the most effective style of lighting. You can always add more light later.