For the lounge I’d consider a new mirror, rug, coffee table and artwork. The sofas and chairs are good. In the dining room I’d change out the light. Are you happy with the chairs? I’d swap out the kitchen stools for wooden ones that echo the dining table.

Your furniture is good. It think if you paint out the chocolate brown feature walls that will be enough change to freshen things up. I'd go with a colour with a little more life that still works with your furniture and kitchen. A pumpkin or khaki would be brilliant especially with a brass wall feature.

Add some textured cushions and you're done.

Just shows we are all different -- I think the dining room light adds interest ! With the 1 proviso .

But look at all 3 pictures you posted . Scroll up and down , and it slowly blurs past your eyes . With 3 exceptions -- in the kitchen is something orange and something lime yellow , in the lounge is 2 things that are blue . Everything else is brown or cream or white ( personally , I thought the wall colour looks closer to khaki than chocolate brown btw ) , and it all merges into a slow speed muddy cake mix . It needs colour .

Theres a nice mirror with no colour . A picture on the wall that hides it's colour . A nice light ( IMO ) in the dining room , with no colour . A lounge suite with no colour apart from a couple of the cushions . Wall art -- no colour . Kitchen ( apart from a bowl or 2 ) no colour . Stools -- no colour . Table and chairs -- yep , you know . The floor is wood look , with no colour . In one of the pictures , I can see you have a tv room or home theatre -- I know because I can see colour !

So a larger abstract picture or two IN COLOUR . Some kitchen appliances IN COLOUR . Some stools -- yep you can guess . Maybe change the dining chairs or recover them , ditto with the lounge suite ( you'd get by with doing one or the other , or even 6 new COLOURED cushions would help ) , maybe a rug or two ,

If your hyper kids eyeballs aren't out on stalks , you need to add more colour !

Take down the metal artwork. Find a spot for them outside. Take down the mirror artwork.
Try the colourful painting, above the fireplace where the mirror artwork was. If you like that look, then get a bigger colourful painting for above the fireplace.
The lounge space is sooo formal, put your single chairs on angles, on the cream wall with a coffee table between them. Try cream lounge where single chairs were. Or take that extra lounge out altogether. You may have a more informal room for lounging, but it just does just seem a little 'old' unless your boys are in their twenties.

With lounge being combined with the dining room, it seems a bit weird to be so formal. If the lounge was a separate room, I would agree with it being formal, for that "special" room.
The whole area just needs colour and personality.

I’m with pottsy. It is all so conservative. Ok so the mirror is supposed to be funky but it drowns in brown. Mirrors work well if they have some life to reflect. If your not used to colour start with some cushions. Loosen up the look with some fun

Some pics to consider colour

Bigger rug bigger coffee table, change cushions. Bigger artwork. Avoid everything being so symmetrical and matchy. excellent foundations though.

I would also try to not have armchairs touching each other which makes them look like another sofa and lose the leather scatter cushions you need some warmth and texture.
Light over diving table is too small.

I tried to reorganise so it doesn’t look symmetrical.
Any thought on adding a large dark colour rug and a red coffee table, to take colours from the chairs.

I actually liked the symmetry. I think it works with the shape of the room and fire place. Definitely not a darker rug. A faded transitional style would be great. Make sure it’s big enough to fit under at least the front legs of the furniture.

Try the single chairs separated. I do not think you need a darker floor rug. But, In the end go with what you like. And how you use the space. It appears you like the Indian influences, so go with that. But, if you look at beautiful saris, they are colourful and vibrant. Your furniture and kitchen, might be shiny. but it is all the same tones. Yes, maybe add some red.

I would reverse your suggestions -- I'd do a dark coffee table ( or your existing one ) on a red shaggy rug -- it would give the room that colour injection , and those shaggy rugs look and feel great IMO .

Just a thought. Maybe a wonderful gold mirror above your fireplace. The gold tones would match better with your furniture and any red accent colours. Find another wall, maybe your entry hall for the silver mirror.

Thanks everyone for your amazing ideas, I am on it and will update when I get it sorted to my liking :)

put the chairs back where they were before but put the end table between them to separate then out.
The silver mirror and white leather are both quite "cold" so you need to warm things up with texture.

Bigger rug, bigger coffee table, keep the layout as is, maybe change out the mirror for a more dimensional surface.

Paint out all the brown walls to the same as the other walls . A nice colourful rug as in Kate’s number three . Change the brown light fittings to a modern gold look or coloured and change the dining chairs to something lighter .