Dots and lines

With a dot and a line you can do some beautiful paintings...I like them a lot, because at first they seem like they've been painted with simple colours, but if you look them carefuly, you realize that they're made by...dots and lines: 

THE MATERIAL I USED

For all of these drawings I used this marker pens from staedtler, wich are very good for this kind of things. 

Maybe the dot with these markers is too little, but I like it like this (In the first picture, I used a thicker marker for the sky).