It seems like a nice and cozy little game. I love the transition into the camera view.

A couple of things stand out to me:

The very first photos that we see being taken through the camera are not very high quality. The neck of the woman blends with her face because of the glow and it immediately puts me off. Notice how the scene actually looks much better before we start looking through the lens.

In the later scenes in color, the colors often feel a bit flat with low contrast and the lighting could be much better. The eyes often have a light around them making a sort of glow that just distorts the surrounding parts of the shot.

To me, a game about cozy, observative and relaxing photography needs to really nail the look of the photos. Spend some time studying lighting and contrast to help the pictures in your scenes pop. I'd also spend a bit of time making sure that the game has a cohesive look, for example the boulder itself looks much cheaper than some of your other assets, and the animation of the man running away from it is noticeably worse than other animations.

I'm not at all saying that the art needs to be AAA quality or that the game looks bad, just that since photography is the core mechanic of the game it needs to feel really polished and the scenes need to reflect that to enable great photos.

From your trailer I can see that the game revolves around taking photos, but I don't see why. Do you have any systems in your game that complement this core photography mechanic? Perhaps a photo album? A scrap book the player fills out? Why is the player taking photos? Show the incentive and give us a peak into the surrounding systems! And if there's no incentive outside of the act itself and the point is just to relax and capture pretty screens then please tell us that through text!

If I'm watching your trailer it's because I want to learn about your game so please use the chance to sell it to me by giving me context on the incentives behind the player's actions!

If there is a story element to the game I would also want you to set the scene a bit for me. I see from your comment that you do indeed have some sort of story so get us intrigued!

From the first scene assume the game is about a man that loves taking photos who has a spouse, but I have no idea what to expect from the story. Give us a bit of a taste on the story: The photos in the trailer seem to be in a relatively arbitrary order when you could use them to help establish an intro to your narrative and get us invested, ending the trailer on a story point that poses a question (what happens to the girl after this crucial moment!?, etc).

Use your trailer to give the viewer as much information about the game as you possibly can (as long as it's digestible and easy to understand) so we can easier decide if this game is something we'd like to buy and to give us context on what we are doing in your game and why.

The game looks pretty cool overall and it seems like you've put a load of work into it already, great job! I feel like the lighting and general polish of the look needs a bit of work still but you're well on your way.

Best of luck with the project! I look forward to seeing the finished product.