Feito, terminei a árvore de inglês.
Agora é seguir praticando e na sequencia buscar novos conhecimentos.
Well done! Now you could practice your second language every day... there are many ways for that, for instance, you should write in english whenever you need to express yourself... the best way to improve any new language is use it.
You could listen english videos on internet, there are many of them available for learning... Just search for one of them about any interesting topic for you.
Writing here on Duolingo is also a good option for that, think it!