Yes! Why not! I'm more than "a tad" older than you and can see all the inappropriate plantings here and wish I'd not been so adamant, stubborn and even enthisiastic and passionate back then. I'd like to imagine you 20 years from now enjoying the beautiful fragrance of your plantings and not having to remember, looking at your aged, sore and tired hands, how hard was the task of taming and imprisoning the devil in lilac! There comes a time when even one's passion becomes a chore...Nobody is exempt. My hands are crippled with arthritis. I cannot get a grip on my brushes, thus the hard work has deprived me of a pleasure and a passion....that is the way it is for many so I hope you are immune. Unfortunately ageing is what the body once strong and virile does and it has no mean influence on that part of a creative person's life. I will imagine you 20 yrs from now, sitting peacefully and enjoying the tenacity of your younger days...not wishing you had done anything differently!

that's actually a cool idea! except behind the wall is the hallway to the bathroom and I would like to keep the natural light flowing through to there and the bedroom hallway on the right. would you keep it as is or remove the timber? it's a bit of a weird feature and everyone comments on it when they first see it!

the painted arbour would be the easy solution, photos would help

You say this is a 1990's house . Its made to look like a 1930's house at present . To make it look 'modern' would take a lot of work , and IMO destroy the character of the house . Embrace what it is , tidy it and change the focus slightly , but personally I wouldn't take off the scrolls and those little posts , or even the walkway roof . Just my opinion , but if you want modern , you sell what you have and buy a modern place in grey on grey on grey , with charcoal -- there are more than enough unique points on this house that you either embrace it or you sell it .