Hello and welcome to BA !
Ok so what is your area of interest or in which area you want feedback on (modeling, lighting, everything …) ?
On the overall I think what you do is already cool, now it’s more about polishing the details and nailing the “Wow factor” : it’s kind of an abstract concept that represents what you add to an image so people says “wow” when looking at it.
Some tricks are there : https://www.chaos.com/blog/top-10-tips-for-creating-wow-factor-interior-design-renderings
But of course it’s more a state of mind and a personal quest than a strict recipe !
On the image you posted, lights are on, but it’s daylight, but light from outside seems weaker than light on inside. You might want to focus on material and lighting only for some time, and that will probably help a bunch on your work in general.
After that you might want to focus on camera work for a while too.
Beside that, these subjects matter are quite difficult, a simple interior design like that is very mundane and once you reached photorealism it asks a lot of skills to make it visually interesting and stand out.
Like who really appreciate looking at photos of standard interiors like that in real life ?
But if we take the same kitchen and add cyberpunk or post apocalyptic elements to it, then it’s much more entertaining, and therefore it’s much more forgiving about composition, material or lighting. But at some point you still need to learn that anyway so…
I’m not saying that’s what you should do, if you are really into archviz, making such render looks cool and interesting while being difficult will probably pay of a lot in the end.
Or you can start by picking a more interesting subject matter :
Camera angle and lighting is similar to your render, but since the subject is more original we get more visual interest for free, that’s part of what makes that images looks “cool”.
Again, I’m not saying that’s what you should do, but I wanted to point out, that while your scene might be easier to model, making it visually interesting is much harder. On the flip side, having fewer elements can help to understand the roots of the fundamentals issues, if you can take a simple subject and make it look cool, then it’s going to be very simple with something more original !
Trying something a bit more ambitious can be a good exercise and a good opportunity to learn things !
Have fun !