I think your biggest problem is the paintwork, particularly as it seems quite dark in the space anyway. If you sell the furniture & replace it you will run at a loss, so I would put that money into repainting instead. Go for a much lighter colour, like Dulux Natural White. Beige & pale blue absolutely work together, & when the beige is on the floor only it will be far less of an impact, it's actually quite a neutral flooring to work with, and certainly a 'beige' floorboard will lends itself well to a Scandinavian look. Also you really want to mazximise the light in the space to achieve a Scandi look so the whiter walls will help this too. If you search "beige and blue" on Houzz I would be surprised if there weren't countless schemes incorporating these colours. Good luck :)

Teal works really well with dark chocolate brown and beige (greeny blue teals with deep brown leather sofas or tables and caramel walls pop and yet are homely and comfortable) so a rug underneath the table and sofa to delineate that space with teal in it or all teal (I would go for a pattern as you have very neutral pieces the one from Kathy above with caramel and beige is perfect I think) could work -ditto curtains and cushions. Given the neutral pieces you could add pops of another colour depending on the teal tones you use. Also lighter turquoise tones that sort of layer with teal - its deeper cousin.... a turquoise ceramic (or other objects) with a toning teal one ( teal and turquoise can vary on the blue-green spectrum) and a lovely caramel coloured piece ( things work well together in 3's I find) all of varying heights shapes and some texture on at least 1 - would look great somewhere. Burnt orange (a more subtle tone than hot orange) can be a great and more adventurous addition as can khaki - just keep them subtle and mix it up. I have a great market bought cushion made from an old woollen tartan type blanket of aqua /turquoise, a light khaki and burnt orange with a caramel leather cross on it that looks so good on my dark brown leather sofa (sorry no photo on me).

Personally I'd be very careful adding stacked stone next to the dark bricks. I think stacked stone can work next to rendered areas to provide contrast/add another element but next to dark bricks it could easily look too busy/too much. It's your home though so do what will make you happy when you drive up to it! If you're dead set on the stacked stone then find the brick manufacturers location and ask to speak to one of their designers for an opinion/options. If they can't help then ask brick manufacturer for the addresses of some properties in your city that have used your particular brick and check a few out. They will usually give you some addresses if you explain what you're trying to do. I'm sorry to have not answered your question as to what colour stacked stone to use. Good luck, exciting times for you.

Yes go monument!and if you go for some lime acacias out the front (tall weeping or the low bush)it would brighten up you whole look.Also adding strappy green plants that bulk up would give it a bit more of a clean look. If you don't want to go monument on roof go a light grey and tie in with a couple of tall light grey planters on either side of your door. Pleas please please!find someone with a jigsaw and cut the tops off your pickets to give a cleaner look before you paint them. I'm stating the obvious but those security screens are pretty overwhelming,can you just have them on windows that can be opened,it might not look so busy out the front.