Greetings from NZ, Skippydrew😀
I've downloaded and printed this plan from the model boats website - thinking of having a go at it myself when my backyard model boating pond project is up and running (see photo attached). It's a slightly 'more shapely' and therefore more taxing build than some of Glynn Guests other small models, but still a nice proposition as a first model. Yours looks like it's going really well👍👍 - I've built a couple of GG designs in the distant past (Arcady and Bredette) and have his 'Small Radio Control Boats' book (you can still find copies to buy online), which I'd recommend if you want to have other subject material for small builds after this one. The book also includes lots of solid advice for building techniques using balsa/card, small motor set-ups for small models etc etc.
It's the first time I've seen someone else have a go at the ST TUG, so looking forward to seeing photos of your maiden voyage.
Ronald's comment is dead right, the 1st leads to the 2nd, 3rd...nth and counting etc😁 - aren't hobbies great!

Well it looks like a tug to me so that is a good start well at least you are trying it is all about enjoying it .
Philuk👍

The first leads to a second and a third with each becoming better than the previous.

Keep at it and have fun along the way.