There are lots of topics related to math and art other than Escher.
A successful project will explain at least one new mathematical idea.
Make sure that there is math as well as art in your project.
If your topic is Escher, either focus on hyperbolic geometry (some
information in 4.6) or symmetry and tesselations (some info in 4.4).
There is also information about symmetry and tesselations in
Excursions in Modern Mathematics, For All Practical Purposes, and
Life Beyond the Numbers.
Again, make sure you investigate at least one new mathematical idea.
Make sure your project is more than a collection of Escher's artwork.