Edit: using a 25W iron whose tip wasn't heating up properly. Had to use its sides to get the solder to melt, which affected precision.
It's ugly af but it works
I'm a solder soldier
And I'm so sorry for that last part
Now I need to by something that holds everything in place, because what took most time was, well, that.
The trick to getting the components to stay in place is to gently bend the legs outwards once they're in place. If you start by installing the shortest components first, the board will also be a bit more stable, although a "helping hands" type clamp is really useful there.
A couple of the joints look like they might be a bit "dry", possibly because you didn't get quite enough heat into the component leg before adding the solder, but it works, so they're goid enough for this circuit. Good work!