How to improve my landscape and macro photos?

Any critique would be helpful. I have been photographing for 1 year. Currently I use a Nikon d3300. I'm not sure how to improve my landscapes. My macro seem to be missing so.ething(other than a proper lenses). I also do astrophotog raphy however I'm just being at that. Any help and feedback is appreciated. My flickr

* You can improve landscapes by using good composition and lighting. Make sure that the camera is level with the horizon.
* Macro photography depends upon your ability to pull the necessary depth of field and compose your shots well and of course having a macro lens to start with. Do you have one?
* Astrophotography in its simplest form would require you to have a tripod and use your 18-55 mm lens at 18 mm to get a good full sky in your frame. You also need to be far enough away from city lights so that their light pollution does not interfere with your images - if your camera has a noise reduction feature (NR) apply it to your images when taking long exposures and/or using high ISO settings