How about some elegant black iron scroll work? There are scads of varieties and they are often the perfect solution for a wall that needs that certain "something". (The photos are from my home.) I recommend choosing art that a) reflects your interests and b) makes you happy every time you see it. You said you can't your hang travel visas and martinis, but why not? You could frame your travel visas and arrange them under a large matte. For the martinis, you could either buy a painting or print of them or literally frame some martini classes in a shadow box. You might also consider vintage travel posters from places you love or that you've already been to. Your home is very nice!

What a fun project. I have a few thoughts that are really just my opinion and shared with very good intentions and hoping the best for your project. I am assuming that your ceiling height is 8ft and the wall length is approximately 8ft as well. I find that oversized pieces are more dramatic and bring colour into a space without clutter or too much contrast. I would lean toward the large piece (#3) simply because it is oversized but I have one concern and that is your hall table. You can use multiple pictures but they should be same size and frame so that they group reads as one large piece (see example below). I think it may be too low and small in scale for the space and for a larger piece. I think the console could be low and wider with a heavier scale (like a bench) or taller and wider to support the art and perhaps a basket with towels or a dry flower arrangement (assuming you don't have a curious pet or small children). I have attached some pics of lighter finished wood. Finally beach themes can be less literal. The use of colours and textures that remind one of ocean side, "beachy" places with a few references work really well too. You have already incorporated blues which is a great start, natural woods, linen and sandy colours will give you the same feeling and be very elegant. You could even add some panel moulding to the pace to add texture. Nothing too elaborate but an extra layer of details to finish off the space. Don't be shy with lighting and other accessories (e.g. baskets) a hook for a hat and light shawl (all complimentary in colour). This will help you to bring some of the colours in your home to the front door or be bold and paint out your door! Entries are so much fun. Good Luck!H

I'd probably do a rectangular rug just inside the door to define the entry and a matching or coordinating runner down the length of the hallway, stopping at the door. It doesn't have to be an exact length but bigger is better than smaller. You just want something to grab the eye and ground the space.

If you are wanting something that is less of an investment piece, look at this one. DD has this rug in a larger size in her hearth room. Although she has a couple of beautiful persian rugs in the house, she wanted something that would not be damaged by small children being small children (art projects, clandestine food and drink, etc). It has taken a load of abuse from 3 small children and one large dog and it still looks nice. It is thin and needs a good pad under it to help it look decent. The fringe is short enough that the roomba doesn’t get stuck on it.