Since you already have an exposed brick wall that you are working on you can try to give this space a subtle industrial look, some photos to inspire you: Do consider adding pendant lighting, you can also give it a chic look by mix and matching metal chairs! Hope this helps!

You can get a custom wall art done , glass with bronze, glass painting, that wall should be a center of attraction, anyone walks. I have done this for a site, it works wonders, guest appreciate a unique feature. this can be done as DIY project on weekend also. these are some some real world executed ideas. cheers mate.

I would suggest u to go with white sheer and light grey curtains only. If u want want to play with bright colours then it is safest if u add them in form of accessories or decors, reason one being the space is small n it’ll look more crowded then. It’s better if u avoid orange n yellow in this bedroom at least. If u can give a better picture of the accent wall colour here it would be better. Then u could go with a darker shade of it to form the colour scheme. White+Grey+Purplish brown. That’s it.

The best way to separate you rooms is to use lattice dividers or display units. It work as a beautiful focal point in an open floor plan while creating private nooks. A see-through display unit acts as a divider and allows one to showcase exotic souvenirs, and accent pieces. Another option is to use curtains on the left side in such a way that the dining gets hidden. Or, Mix up furniture a bit. Use sofas in the living room as a separation that contrast beautifully with the crisp, modern dining set.