What's the flooring? It looks pretty nice on the main floor. Do you have a foundation? If you're on a slab or pillars, you're going to want to insulate the floor, so think about that in your flooring choices. Are you going to use the house year-round? If you're going to leave it unheated for part or all of the winter, that needs to figure into flooring plans, too.

It looks like a small house, so we'd need to see the floorplan of the kitchen. If the kitchen is tiny, as I suspect it is, I might live with it for a bit to get a sense of how the layout and cabinetry could be improved. It's often easier to know what needs to be done if you use the space.

How important is the wood stove for heating the house? If it's an important source of heat, you might get a more attractive one and something better than the fake-wood thing it's on now (which probably has asbestos in it). You can also get things to attach to the chimney-pipe that reduce the heat going up the chimney. You should look up regulations on what kind of bends you can have in the chimney-pipe, because relocating the stove might be helpful, even if you're only moving it a foot. Possible new woodstoves are more efficient, but old ones are often very attractive.

For the bathroom, I might lean into the teal of the sink and pick some flooring and towels to coordinate.

What kind of budget are you thinking? And how much of that budget has to go to necessary maintenance? That will limit what you can do. If budget is not the primary constraint, you can prioritize the updates by optimal installation order. But if you're looking at doing the upgrades over several years, then you should break the project into logical chunks prioritized by which upgrade will improve your quality of life the most. For me, that would likely mean that the kitchen would come first.

As far as modernizing the aesthetic, since the orange-toned pine is everywhere, choose blues, greens and warm whites to complement it. I'd avoid yellows, reds and grays which, at least to my eyes, argue with the wood. I'd also look at upgrading the lighting substantially. Because of the large amount of wood, the house can feel dark. Have a lighting plan done and implement it. You'll be glad you did.

Regarding the fireplace: it's way out from the wall right now and interfering with the traffic flow. I'd relocate it much closer to the wall or in the centre of a conversation area (like an indoor camp fire). If it goes close to the wall, you'll likely have to add some tile on the wall as a heat guard. Think about tile for the main floor as well. It's easy to clean and won't require you to add an extra heat-proof surface under your fireplace.

If just refreshing here’s some ideas to help with that. If doing a major overhaul make a floor plan for us to help you with.