yes but not too much stiff serious. just put in the right mix of wit, humor, smartness and you're good to go!
every one have their own views, some girls like serious girl like also. in my opinion it's is not a matter of moods. it depend on the feelings.
Yes, Money make women believe that the guy is funny and attractive. IMoney is the magic power that make you control women and get laid.
it depend on the girls that what she want from a boy. everyone have their own views about their life so some girl like serious and some like others
But I'd thought I'd mention, that i like serious guys. It's a plus if they have a sense of humor and smile ever so often though. and of course romantic helps
girls are human beings which are very moody and they require a person that could keep them happy and romance with them