how accurate is your compass? or east and west, if right on that line, and depending on your lat and long if the sun is angled or something at all from that fence or house they may get shadowed out, Id try to make it work in the larger section, maybe 2 -4 max down the "alley" side. tough call from the pictures. Are they staying in those pots or new ones? in ground? You could put them up on milk crates or something to give them some height and more direct sun during the end of day / morning if their shadowed. Sorry cant be of much help without knowing the area. You can find your lat long on google maps, then input it into programs like sketchup or other modeling programs that have geolocation where you can enter the lat long of your area, and then track where the sun will actually be during the grow season especially flower... and check what will be the most efficient for your area. (edit: take your modeling program I used sketchup, enter the sat img of your grow area, then make a post in the model, as if it were a flag pole sticking out of the ground, you could use a few, one for the house height, one for the fence height, one for plant height (or few for growth of plants over time.. Then enable shadows, and fast forward the day so you can see where the shadows will land... do that for may june july aug sept oct nov even dec depending where you are and what strains your growing you could do it for the whole year potentially. ) Good luck, hmu if you need help.