The author of your paintings, as can be seen from the photo and signature, is a Swiss artist Johann Jakob Frey (Johann Jakob Frey, 1813 - 1865).
Quite famous and fashionable in their time artist. Wrote by King: Frederick William IV of Prussia (for interior design of the Marble Palace in Potsdam, Germany), Ludwig I of Bavaria, Wilhelm I of Württemberg. Many travel, even traveled to Egypt at the excavation of antiquities. Since 1843 he lived permanently in Rome. Written by many kinds of neighborhoods of Rome.
Prices for his work can be found at:
http://www.findartinfo.com/search/li...ann_Jakob_Frey
The artist, as you see, not cheap. But particularly rosy illusions you still can not shine: the state of your pictures unimportant. Obviously, you kept it is not in the palace.