At TechEd 2015 in Las Vegas and Barcelona, we have presented an Innovation Code Jam to experience the usability investments and the Fiori adaption throughout a challenging exercise. This exercise can now be performed in the SAP Cloud Appliance Library (https://cal.sap.com). You just need the NewWeaver 7.50 system from the CAL and you can start.
You can find the exercise description including Tasks and Hints under: User Experience Boost to Web Dynpro ABAP Apps with SAP Fiori Principles .
You will notice that this exercise is really challenging and requires some basic FPM knowledge. But you can always compare your solution with the solution given in the exercise and available at CAL.
By the way: Any feedback on this Innovation CodeJam is welcome.