Does my pokemon (diamond) team sound good?

Question

So far I have and I need to get to Lake Acuity-

-Lvl. 38 Staraptor

-Lvl. 38 Infernape

-Lvl. 38 Roselia

-Lvl. 38 Graveler

-Lvl. 38 Floatzel

-Lvl. 38 Lopunny

I am also training a Lvl. 21 Riolu (which I got from Riley on Iron Island).

Sound good enough to get to the end? (Of course I will be leveling them up so I can defeat the last two gym leaders, the Elite Four, etc...)

Answer 1

get rid off lopunny-its to weak
Graveler is not really a strong pokemon, its the weakest on your team
:- get Gastrodon its better
take out rosalia and get abomasnow- ice/grass type pokemon
the rest is okay