Hey! They are very good. I really like ocean, it has a beautiful atmosphere. I also liked zombie, but if I can give you a suggestion, the drop seems to be too quiet compared to the build ups and breaks. Maybe you should try to make the drop louder, or automate the volume of the build up before the drop. I think if you do it it will be a great track, because it sounds really good. Keep it up.
I also just finished a track, would you like to listen to it and give me some feedback? Thanks!
https://soundcloud.com/d-rack-2/d-rack-butterfly