Practising on Fundamentals: Perspective!

I really really really have to start learning all the really basics. I was watching again youtube videos and the artist in those videos, Feng Zhu couldnt stress more about the importants of the basic fundamentals. 


I will seriesly start practicising all about basics.. that should improve my art skills in everything.
Today I started just a little by reading and paint about perspective...

First sketch is 1 point perspective practise and other is for daily sketch topic about "the rising of the black flag".. didnt have any idea about what to draw and I just made two point perspective and it came up as a some sort of city.