Hi kfeto
Good work!
I would just like to point:
1-...I had some questions about "them".
If you are talking about the photos, that is correct, but if it refers to the place it should be:
I had some questions about
it
2- The last sentence is a long one, however it could sound better if you change the structure a bit, instead of " And finally are there students coming from other countries as well under the work and travel program?" you may say:
"...are there students under the work and travel program, coming from other countries as well?"
For apologise / apologize, both are correct.
As I said these are just suggestions, the text looks fine as it is.