The surrounding looks to sweet in comparison to the thing that's laying on the table.
Furthermore i agree with coldwave, that you should refine this project before going to another one.
Also 'play"around with the modelingtechniques the tutorial probably used and give the scene a twist by adding stuff you create and delete some others.
For instance; Change the texture on the wall so it looks like those big stones were they used to build castle from, add a window, by using the split polygon tool.

good luck