Hej. Bra jobbat! Here are some corrections:

Få Några meningarna

Det nya bordet är i min mitt rummet. (The new table is in my room)
Få Några pittoreska fågelar sjunger på i trädet.
Den röda bilen åker på motorvägen.

"Få" is more used in a negative way. It is possible to write it like you have done, but then it sounds like you are disappointed that there aren't any more birds singing.  Compare it with the english word "few":

Det var bara några få som kom till mötet. Just a few people turned up at the meeting.

Just tell me if you have any questions... :)