I listened to your playing and found it pleasant. Only you can assess "mistakes" when it comes to the creative aspect. If you are trying to sound like an established genre, somebody else or music of the past then "mistakes" would presumably mean failure to achieve the imitation to a reasonable degree. However with your own work it is more a case of asking yourself if the result is interesting to you, whether it pleases or surprises you, whether it will stand repeated listenings, whether you have broken new ground or whether a priori intention, if such existed, has been fulfilled.