Had issues attaching the photo... Reverted to my mobile

Cheapest thing to do would be to paint the doors put a bit of timber benchtop from Bunnings and perhaps mirror the back panel, but where's the Bar Fridge going or are you planning a bigger fridge nest to this. As Louie suggested it might be better to get rid of the old as there's no place for a much needed Bar Fridge, A Barn door of whatever style suits you would work well, you can pick up second hand doors with character for this. Then again some Bunnings timber benchtop , (Mel) fitted & supported by beams screwed into the rear and sides of the nook and hidden by a strip across the front as your bench top. With a bar fridge under this, floating shelves above on the wall for bottles /glasses and DVD player etc, much easier to use the DVD when it's not in a cupboard love the room.

Oh super helpful. I searched for Pool Houses but "Enclosed Pool Houses" have really filtered the designs I was looking for inspiration. Thanks! It's so important I find the right builder for this in my area. I've not had much luck in the past with contractors and really want a smooth build. Cheers!

I think if your surroundings are white and black with hardwoord timber floor, go with charcoal colour. Blue colour reminds me of when we used to go to the Snooker rooms in the city they were all blue. Charcoal is different and very modern. [https://www.houzz.com.au/photos/game-room-contemporary-family-room-chicago-phvw-vp~3202405[(https://www.houzz.com.au/photos/game-room-contemporary-family-room-chicago-phvw-vp~3202405) - Imagine this room with white walls