Hi Agostino, and welcome to the forum and the exciting world of calisthenics! The exercises you chose are excellent, and I think you can only do them twice per week because you are still starting out. Before long you will recover more quickly and be able to train 3 or more times per week without soreness. You can also try splitting it up and do pull ups and push ups one day, then rows and dips another day. I personally suggest doing a full body routine, but if you want you could do a third day of squats and planks or leg raises. At this level, it is a good idea to do a dedicated abdominal exercise, and at any level, I suggest bridging!
In any case, it sounds like you are off to a great start!