1. I think the elephant in the picture has 7 legs. It looks odd/strange. Who drew this picture? No! I don't think so. It is a normal/common elephant. I think it has 4 legs. Look at the picture closely.

Question

2. I think the woman in the third picture is young. She looks like a pretty woman. No! I don't think so. She is an old woman with long nose/having a long nose.

(Are the passages grammatical? Please correct errors. Thank you.)

Answer 1

1 is fine.

In 2, I'd say, "... an old woman with a long nose." The rest of the sentence is fine.