You should try different angles. From below, from the side, etc. At the moment, it is just a picture of a rose but there is no emotion or story behind it. The DOF and focus are good, but in the end, it's just a rose. Sorry, it may sound hard but I think you can do better and we are here to learn...right... I think you have the opportunity to do better. You have the technique. Now try to work on composition and emotion.