Is this a Insertion Sort?

Question

I made one code for Insertion Sort in c++.
But it looks different and larger than SL algorithms Example code(https://www.sololearn.com/learn/655/?ref=app). I made this code in more than 2 hours by myself . It is good for me to become a great programmer.

https://code.sololearn.com/cA10992a16A1/?ref=app