[draygin]

Well since you said you're new I'll go more indepth. The clashes with itself really bad. It's a large variety of different tiles that dont blend well. I recommend going with a color scheme of light or dark not a mixture of both. Maybe all red or all gray or all blue or light blue etc...

Cliffs lots of tile errors here which you say is because you dont know where the tiles are. Easiest solutions to these are look at the tutorials at the top of the forums or use pull out predefined objects to get the tiles off of the predefined cliff piece then delete the left overs after you have the piece. (tutorials is easier)

The shore is to straight. I recommend making the dirt move in and out the shore line more wavy and or maybe making the shallow water get close to the shore and move out etc.. (If you dont understand let me know and I'll try to give a better explenation)

Be sure to use all the sand tiles. There is a total of 5 3 sand types and 2 rocks. Don't go crazy with the rocks.

Grass detailing needs work but you already commented on that in first post.

For House over the cliffs try this, put a pole make it go down 1 or 2 tiles then get another pole farther to the right and make it go down farther than the first one. So it will give the apperance of the poles being shorter as they get higher up the cliff and need less length.

line example.
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but that would require putting the whole part on the lower part on stilts to make the perspective right.

The best way to do is make it staircase like going up the cliff.
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see what I mean? If not I can make an example once I get home but cant right now since I dont have graal on this comp.