So now, I drew some lines:
I think it's a huge improvement what you did !
Now to the lines: you see the two lines going on the base and the top of the rocks!
and what I want to say with this lines is, they shouldn't exist. This is really unnatural, I think you will never find cliffs like that in real nature, because they are a random product, mainly try to randomize your cliff, what could help is for example a huge scaled rock looking out of the rest of the cliff.
And I also think, that u used to many small stones for it, just a little stone spam there ;-)
To the other marked things: first the bushes in the cliffs, it looks unrealsitic too, if they grow on top of the stones, try to always add them to the points were rocks have their base. With green colour I marked you some example places!
One other thing are the few darker green bushes in front of the crypt. They look like they stand in a row, again, a little unrealistic!
Also you should try to add them more over the whole landscape, because right now they stick out of the rest, which isn't that well, because it steals attention from the crypt itself!
A last thing to mention is, maybe, I don't know what's your intention of what sort of crypt this should be, but you could play a little with the fog and light, to get a more mysterious look for a "crypts entrance"