That is a great sounding train. Nothing wrong with that, especially for a beginner!
The only I suggestion I have is to really accentuate the A-TIC-A. So that there is a little more separation on those chords and the T sound really pops out. That T sound is made by the same action as when your Tsking some one who’s been naughty. The tongue hits the top of your mouth.
Hope that helps. Let us know.. 🙂