Yes it sucks to people who are not skillz. You need to be experienced in order to make a game to good quality. I admit it's not CryEngine material but we can do far more things then they can. I'm not talking quality.
Playing Eroges/DigiArt sculpting (No ... At internship)
Quality is just a trick of memory size for rendering and size of textures, don't worry you'll do it. Unity quitted it ages ago didnt have had the time to study the usage of it. The shinook looks Great to btw did you use a 360 degrees rotating camera? *those excist* assuming that you wont be using cloud particals yet. (though those are just multiple following textures like in doom but then 20 in a region of 200 px + high detail, and different frame rates.