yes now you surely get the Nepal's tourist visit at the airport. don't worry too much about it.
If i am the visa issuer, i will give it you also. You have pass the interview. Make sure you don't overstay your visa. Renew it periodically as issued date stamp on your passport. You have to pay for it though.
Finally once you are done with your purposes, return to your country before the VISA expire. Don't live in Nepal illegally. We don't torelate illegal immigrants in Nepal.
It's not like in America. We are country of law and order.

yes thanks for posting pictuers and your experiences in the future. this will be good for other americans wanting to visit Nepal in the future.

good luck