Thanks for making your self clear in description and supporting us by giving enough details despite elevation wasn't clear enough.
Portico are designed to take the touch of the beautiful historic architecture and giving the house unique look
Lights is the most important factor to Curb appeal at night time so I suggest not to spend all the money on plants and trees and landcaping but buy LED Lamps. The est way to install lights that make the house looks much more beautiful is to place them in an indirect way like those in the picture either LED lamps in the stairs or on the ground facing up just next to the house.
LED lights can be used also for lighting up trees. Solar LED lights can reduce expenses on electricity bells and can be found on amazon
There are lots and lots of pathway lamps so try to choose one that is related to other lamps in the garden
To sum up, Lights are the best welcoming factor to your home and can make it looks extremely beautiful
It would be better to change the fence and get another design. I understand that it may be expensive so it is up to your choice
I strongly suggest to change the door like the one in my design in order to emit more sunlight
[b]Plants and trees:-[/b]
I suggest not to plant any other trees. Striped Maple can offer the most privacy for the backyard
plants: viola, roses, tulips, delphinium, daisy, dahlia in the front area and around trees. Climbing roses between windows. Flowering pea around trees to cover roots
Despite shutters are a great way to block sunlight in hot weather but it is used commonly for blocking booring areas in the building and i see it is not essentially to keep them
If you are interested in my design Please do not hesitate to to contact me in order to provide you with portico CAD files