Chances are if she said everything is fine, I am sure your bub is just perfect. The point of that scan is to see if anything is wrong

Also YAY for a boy

No there are no more tests after this one unless something was wrong but it doesnt sound like there was so this will proabably be your last scan until bub is born. You could always find somewhere that does 3/4D ultrasounds though just for entertainment and to see bub again. A good time to do this is around 28-32 weeks