[ADTech]

You'll need a directional antenna in any event. If you want signals from multiple directions, you will need to use a rotor.

Weak fringe UHF signals seem to get severely clobbered by trees, often making them unwatchable. The pre-amp you selected will help some, but the only certain cure is to physically mount the antenna where trees are not an issue. From your photo, that's likely not possible, so you'll have to accept whatever the trees do to your signal. High-VHF signals are affected also, but to a lesser extent than are UHF signals.