How important it is to combine fun with the theme of achieving goals and effort already as a child, so they will forge a way of being that will help them all their lives, it is very important. He looks like his uncle without a doubt .... well I guess his parents too.
And your pride is legitimate, your love for your nephews and nieces is noticeable and although it is unfortunate that you are not close to them, I am sure they feel you.
They even know you're crazy.... crazy uncle.🤣
Congratulations to your nephew! Well deserved achievement and with a lot of effort, that's worth more than anything.