Where does this TIF come from? An export from ACR? In any case, you should be able to adjust the exposure using the Exp. comp. slider in basic adjustments 
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Also try using tone mapping
Nicely framed photo, if it is yours.
– Edges of the masks are distracting, especially where the trees and roofs touch the sky on the left. They are dark where the mask doesn’t reach.
– Edges of the image have black bars that need cropping. Might be because PF doesn’t automatically crop after a lens correction, etc.
– Halos along edges; e.g., where the left building touches the sky. Maybe a result of ghosting due to stacking or camera movement?