Reflections: I am not sure which reflections, perhaps that reddish rectangle? You will need to select it first because you want to change only that part. The next step is to use Curves, for example, to match surrounding color, to change that reddish to brownish as nearby colors. Look for tutorial how to swap or change color. Streak's in the sky you can try using Spot Healing but I am suspicious it won't work. Try rather with Healing Brush or Clone Stamp +Healing Brush after cloning to soften edges and blend cloned part with the rest or surrounding pixels. Do everything on blank separate layers.
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