Most reception venues you don’t really notice the ceiling once it’s all set w tables and the light levels are adjusted - you typically want the lighting turned down a touch so it isn’t impossible to see food and other people, but dimmed enough to give ambiance. Especially with such a nice view out the window, you don’t want outside to look dim and dreary by comparison. If the overhead lighting doesn’t have dimming then you’ll probably need to talk to a rental company about your options.

Will there be a wedding party table, or just a table for the couple?

There are so many options for covering the ceiling goes and as seating goes definitely chairs not benches. Bad enough this room looks like an empty office, using benches it will look like a barn. There are a few local restaurants around here, who do weddings from time to time, they also have drop ceilings so when they decorate they cover walls and ceilings with fabrics, balloons, flowers, etc similar to this style rooms, everything, of course, will depend on the budget and how far the person who is paying is willing to go.

I’d be worried adding draping would lower the ceiling too much. It doesn’t look like the ceiling is that high, especially proportionally to the dimensions of the room.

I think the ceiling is too low for draping and unfortunately the lights can't be dimmed.

I don't think there will be a special table for wedding party

No dimmer, that's not good. Have you asked management if anyone has had a creative solution to soften those lights?

This looks interesting:

https://www.pinterest.ca/pin/306244843403269223/

Unless you have $$ to blow to fix the room, I'd find a venue with an appearance more to my liking. You can spend a fortune on interior adjustments and that's just not the important part of getting married.

Cut the guest list to about 20 people and choose a boutique hotel with some charm and it will all cost a whole lot less money and be a lot more intimate. This will always look like a hotel banquet hall no matter how you fluff the pillows. Re who to invite-the wonderful wedding planner that we hired for both our daughter's weddings comment was " Don't invite anyone who won't cry" It was amazing how that worked to edit the guest list....

What's it like during those hours with the lights just OFF? Then add your own candles and lamps. Is the outside lit at all? This room is all about the view, so make sure there's something visible as it gets dark!

You’ll want to know all these things:
There are only two things people remember about weddings -

1. Whether the food was good or bad, and
2. Whether they had a good time, or not.
   Ditto on round or oval tables. Being casual is one thing, and too many brides think it’s great to let everyone choose their own seats, but thoughtful assigned seating makes sure that aunt Emma sits next to her favorite cousins whom she hasn’t seen in years. It keeps those old school friends together so they don’t end up with no one to talk to. You get the idea. As the evening goes on, people move around and change seats to visit others. And yes, special head tables. Doesn’t have to look like “the last supper” but it can include spouses or dates.
   Often overlooked... find a spot close to the food and drinks to set up a few tall cocktail tables. There’s nothing worse than having both hands full and trying to nibble food while you’re standing chatting with people. Also consider creating a couple lounge areas. Small areas people can talk. The weddings I’ve had the least fun at were large, noisy one-room events with bad food and no drinks. Many of your friends and families haven’t seen each other in a long time and love to catch up. If it’s too noisy to chat it’s maddening.
   Fun things... have fun and novel things to do and see. Have a slide show of the bride and groom, but set it up in a corner like a movie with popcorn. Get conversation starters from www.talking tables.com to put on the cocktail tables. Another corner with a nice backdrop and silly photo props for photos. We even surprised our daughter with a penny press with a die that was custom for her wedding. It wasn’t a budget-buster.
   Finally - and most importantly, assign trusted men - yes, men the job of watching the gift and cards table and have them pack it all up right before food comes out in a secure location. Not in car trunks. Have the venue provide you with a locked room or closet for them. This is especially crucial for anyone else who might have a wedding in a more public space like a hotel. Speaking of men, they are sitting on the sidelines writing checks, but not having much to do or say. I found that I could include my husband by giving him a few specific tasks, especially the week of. Running errands, etc.

I never mentioned ceilings... because no one cares. Ever.

Congrats and good luck.