I think you did great for the tools you are using. Very neat design too.
Don't give up yet- find what frustrated you here on this build and recognize the things you need to improve. Router control is a learned process, patience and shallow passes are the keys. I don't use templates for anything , and the earlier stuff definitely had worse looking routs !! I think what I'm getting at is this : Templates don't equal perfection. I've seen numerous horror stories on here about templates slipping, bearings drifting/ breaking/ tearout, etc. Just refining your weaknesses will make you a better builder, a task I am still working on myself.
I think its a great guitar you've made here. Keep at it and youll really knock em out.