The landscaping is not very special, probably because of long straight lines. If you want to make it look natural, the longest straight line should be 4 studs long, never only one stud wide and when you make a turn, don't just change dierection, go one studs forward and one to the side, then again and maybe one more time, except, for instance, one forward and two to the side now, to give it a nice rounded effect.

You let your presentation slip a little here. Your pictures are pretty dim, and the last one is very blurry. Take the time to get your photos right. It makes a huge difference in the look of your MOC. Attack!

Remember to put link to the group.

Really nice work. The cave looks great.

Nice little tomb

Cool just needs a bit more detail!