It's always nice when you find your first in any category. Congrats on your first silver.
From the photo it looks like you dug a large, messy hole to retrieve the coin. Couldn't tell if it was grass or not. Please be careful when digging. Take your time to center and if it's grass, dig a square shouldered, 3 sided plug to flip over so it's easy to replace. Leave a place like you found it so nobody will ever know you were there. If you dig like that you will get lots of invitations to detect. If you make a mess, particularly on public property you will find you will be banned.
Way to go on your first silver!