I think I would start with the furniture, in terms of space, given that you said it was not a large room. I would check sizing of the furniture and room, to see what would work with the bed, a couch, the wardrobe and any other furniture that you'll be using in the room. From there, I think I would start with the bedding possibly as a starting point for the color scheme. Perhaps you could find bedding with a print you like in the colors that you like, and take from there, the colors for the rest of the room. As well as a sofa bed, another option might be a daybed that could also do double duty as a bed or seating. I think painting the furniture a bring pink would work well against the white. And then take it from there with whatever you've decided to do in terms of the overall color scheme with pink/white/silver/black or pink/orange and white for the walls, perhaps something like a gray as well with the second color combo. Good luck!

I would suggest you take out the cabinet that is to the right of the stove and use it elsewhere in the house -- perhaps in the bathroom or dining room with a hutch above it. Then, I would suggest you have someone install a lazy susan cabinet in the corner between the sink counter and the stove, meaning you would move the stove down a bit and have a small cabinet/counter top to the right of the stove. I would suggest you have the cabinets refinished in white and then paint the walls a pastel you like. If you would prefer white walls, then add white-painted crown molding and paint the ceiling a light neutral blue, such as Sherwin Williams Niagara Falls Blue. Then, I would suggest you choose a favorite accent color and use this sparingly in accessories like towels, pot holders, small vases or floral arrangements, and a valence above the triple windows. For a genuine 1940s look, you might have white ceramic square tiles with a rectangular red border installed as a back splash behind and above the stove. If you are replacing counter tops, I would suggest a light color such as white with a beige or light grey vein or striation for some sort of pattern. You might be able to find the same color and design in floor tile OR opt for a wood floor as another poster suggested.

You say the kids come in the small door and then bring their stuff to the large door to drop it? I think the "mudroom" needs to be at the small door. Anyone who brings their stuff out of that area has to clean the glass doors next time they need it. As for the guest entry, you need to get something bigger than that desk, and your picture needs to be lowered so the center point of it is 5' above the floor (you'll have to calculate the centimeters.) Consider making the investment to reverse the swing of the door so you can make the best of the larger wall to greet your guests with a console or credenza and some decor.

I went to Photos>Outdoor>Decks and searched "barbecue" and found lots of them on wooden decks. Some were freestanding, but most of the built-ins seemed to be surrounded by fireproof material.