<span>Yo les invito a que nosotros demos un gran aplauso al pintor</span>
Yeah it its correct my friend
True.
Museo is masculine and you can't change it to female it is one of the few words you can't change.
Answer:
1. Como esta?
( a would have an accent mark)
Explanation:
2. Gracias (it may have an accent)
3. idk
4. Hasta Luego
5. Como se llamas?
Everything seems to be correct. Great job!