It's a lovely Choose-Your-Own-Adventure kind of game, well done.
I have never seen the choices in this genre done using cards; that's a nice spin on the format. I also love how the cards start moving when you hover over them and how the continuation of the story is on the other side when the card turns around.
Sometimes, I wished there were three options to choose from, mostly because it's usually easy to mentally eliminate the one worst option, but it takes more thought to pick one out of three.
I don't think the game uses the inventory well so far… The only item I really used was corn, and I acquired corn just moments ago. Then I “lost” horses but probably didn't get to use them much, and I didn't see the use of any other item during the demo. You probably shouldn't be saving all items for some epic showdown with the dragon, you should be using those regularly to get used to it.
I couldn't get gripped by the narrative. I knew where I was and what I had been doing, but it jumped all over the place without a clear sense of direction or main goal. At least that's how I perceived it during my first and only playthrough.
1) You leave your village home, and guards need you to come with them
2) No red flags that I recall from the guards. You can even be polite, but you decide they're suspicious and need to flee (only a single option in two flavors)
3) You start stealing in the market (no option to avoid it)
4) You decide to go see the king after all. You go where the guards were taking you.
5) King tells you the story, instantly accepts your help offer, gives you resources
6) You revisit your home again, and leave immediately after you grab a fairly generic item.
7) Forest, marsh, village… end of demo
At this point, there are so many detours which don't contribute to the main story that I barely recall there was some dragon and a princess – most of the time, I focused on anything but that, so when the pinnacle moment comes in the final game, I worry it won't feel great because there wasn't much of a preparation, foreshadowing etc.
Also, you should link your Steam page directly in the description and in your profile; it took a moment to find. I think your thumbnail picture is needlessly erotic – I had different expectations about your game and was pleasantly surprised it wasn't, in fact, a cheap thirst trap; but a pretty nice adventure game.
The princess also looks somewhat younger in your static picture in comparison with the trailer, and wears different footwear. The short description itself looks a bit lazy – with emojis and a missing full stop. The long description also needs more pictures – you have a beautifully drawn scenery, use it!
There's a popular free course with tips about making a stellar Steam page that draws players in, consider taking a look; it might help:
https://howtomarketagame.com/courses/
In any case, good luck with the ongoing development, and I wish you a successful Steam release later on.