Thanks for the kind words.
To build your own platformer game in Construct using this template is very easy.
All graphics are just images that you easily can change and manipulate. You basically just need to design the levels by using the excellent editor in Construct.
If more advanced enemies are needed or other special content are needed you will need some skills in doing events in Construct. But don't worry it is quite easy and you will be able to learn a lot just from examine the events in the template.