I enjoyed going through this brief detail about the teachers that have taught you.
I also had a teacher the in my Senior secondary school. He is the reason I'm in love with Biology and chemistry till date.
He is so good at explaining and calculating also.
You have written well.

I have a piece of advice for you though.

Try writing the link to where you got any image or any material in this format.

[Source](then paste the link here)

It will come out very neat as just Source with blue writing and whenever people click on it, it will redirect them to the place you got the image.