Below are some examples I found on the Internet during a Google search.
Painted when he was about 15 years old and perhaps still being coached by his father. Its relevance to his future styles is minimal.
Yes, this was painted during his 1901-1904 Blue Period.
An early Cubist-type work showing people, but no buildings such as are found in all the other images here.
More solidly Cubist. Fellow Cubist Georges Braque painted quite a few subjects like this around the same time.
Now we reach the point where Picasso was starting to run out of new ideas. Compare this to the image below that was painted 25 yers later.
More Cubism here than in the previous image, and some of the subject surfaces are dappled. It retains the harsh look that Picasso began to practice in the late 1930s.