How do you say "Hello you look great" in French

Me it would be greatly appreciated : )

Any french speakers? i need some . how would i say 'my oldest brother is very tall, interesting, and good at drawinng.' in french? would it be: mon (i don't know the french word for oldest) frère est très grand, intéressant, et bon à dessin. also, how would i say 'my dad is good at his work' in french?

Conjugate the following verb with the pronoun given. (je) apprendre j'apprend j'apprends j'apprent j'apprents