I suggest you look for a large horizontal coastal photograph in understated colours, like this one, and then pick up the hint of colour with an accessory on the table.

https://fineartamerica.com/featured/bulls-island-c-iv-ivo-kerssemakers.html

http://www.coxandcox.co.uk/home/decorative-home/bowls

The present arrangement

The present arrangement suggests that TV is the focus of the room. If that's not the case, then rearrange the furniture so that the arrangement is more sociable, encouraging eye contact and conversation.

The coffee table is virtually useless. Use end tables with the sofa and a round table between the chairs. Lamps (table and or floor) will give flattering lighting (unlike overhead). The black sofa is not very coastal. A throw and brighter cushions could help.

jbtanyderi- I think the sofa is navy, not black

Thx Rina for your suggestions. Do you think picture above sofa should be in a frame?

Jbtanyderi: Yes there's a tv across from sofa. Surprisingly, my seating arrangement (including dining room table bench) makes the living room sociable, encouraging eye contact & conversation. The coffee table & end tables allow people to place their drinks (and yes there's an end table between the 2 chairs). My sofa is an indigo blue not black.

Hi jck910: thx for your picture suggestions. I love all 3 making a decision very hard for me. The area above sofa is a huge focal point in my open concept area.

TV & console are across from seating area in living room. (tech coming back to move tv & console more towards dining area).

Found on HOUZZ search for costal art. Just looked at a few to get ideas.

A big thx kulrn. I was able to "view in my room" some of the coastal art you posted. I never knew I could do that. That really helps visualize things for me.

Ck, you have found my dithering spot. I couldn't make up my mind this morning about a frame, but now I think in fact that a frame is needed. I'd keep it simple for the look you want, but the colour would depend on the picture you choose. Preferably light, I think.