Is the soffit which divides the two spaces painted a different color or is that just the lighting? The built ins are beautiful. I love the paint color! Can you tell us what your style is? Do you like straight lines? Do you like color? Of the top of my head I would say rich color rugs, curtains and lots of lamps. Those are the things I always want in my home. Not to mention art. The rest falls into place. I guess to suggest we need to know what you like and the feeling you want in the space.

Cute place, i see the challenge, but I am really against a sectional in this space let alone for guest to have to sit next to each other it creates a weird dynamic. I hope you are not planning to put the tv over the fireplace that would also be a neck breaker. I see the couch on the side the two red chairs. the tv on the wall with the lockers and 2 chairs to the dining room side.

The table top in your inspiration pic caught my attention. It's not the usual furniture showroom table top. I really like this cedar "countertop" and was wondering if something like it might work as a table top or as a top of a rolling cart island that could work as kitchen prep space and/or guest dining if not as a table. http://www.devoswoodworking.com/designing-wood-countertops/wane-edges.html Legs could be bought separately. https://carolinalegco.com/products/x-metal-table-legs-set-of-2-modern-industrial-legs-custom-sizes-available?variant=32186224640097&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_term=&utm_campaign=DR_PLA_Smart_200%25&utm_source=adwords&utm_medium=ppc&hsa_acc=7051262680&hsa_cam=9915659242&hsa_grp=103137792649&hsa_ad=432122759881&hsa_src=u&hsa_tgt=pla-296303633664&hsa_kw=&hsa_mt=&hsa_net=adwords&hsa_ver=3&gclid=EAIaIQobChMI6p_wwNPU6gIVgbbICh0T8w-jEAsYAyABEgIkX_D_BwE

Will you be keeping dining table and couches for a while, as you mentioned you will be replacing? That will dictate suggestions for lighting, etc and even ideas for a better possible layout. https://blog.modsy.com/home-design-tips-guides/layout-guides/living-and-dining-room-layout-designs/ If replacing shortly, if you could provide more details in regards to your taste, needs, and style. Either way, could you provide better pictures of the whole space and what your plans are with the furniture. Repainting, if you go that route, should be the last decision.