Greetings all!

I would like to ask peoples opinion on this pergola I'm building, I have all materials ready and have my 2 ft holes dug out. I'm just in a little dilemma as the garden slopes down along the run that the posts are going.

I am running 4 posts in a line along the neighboring fence, to break it up and get some greenery growing up them. The first two post will have horizontal beams leaning to the house as shown in the attached plan.

however as the garden slopes away from the house (about 2ft the length of the run) I am unsure if I should slope, step or have the cross beams level like in the second picture. At the moment im leaning towards stepped but would like to know what others think.

Thanks everyone!
Damian