"Place to Relax" is my first interior design project. I created it to get more comfortable with materials and light in Cinema 4D and Octane Render.
In my opinion it is very important to do these personal works to develop the way you think about problems and solutions. Some things may seem pretty simple in your mind and once you started you surprisingly get some headaches. But that's ok. You're not a professional when you have no problems, you're a professional when you can solve them.
Ok, so at first I created all the geometry. The lamp and the big cushion were just dragged and dropped from the C4D library. (Use the search! You don't have to build up everything from scratch every time.)
And then I used different techniques to build the other stuff. Vase and flower pot are splines inside a sweep object. The stool was basically a cone, using some boolean and cleaned it up. The most efficient way I could think of to make the books was scanning some old ones with my Sony Xperia. I used the raw scans here and they are open at the bottom. If I would need them for animation or closeup shots I definitely had to put more time in these scans (closing, retopo, maps etc.) but for that case it worked.