It should be much bigger than this and there is still a lot of empty space on home page, but that is just my opinion, so you can ask other people for feedback.
Maybe something like this I posted below or play around more with colors and size.

https://i.imgur.com/lsYSn5W.jpg  vs  https://i.imgur.com/Ylo4r2u.jpg
                               original                                                                                        my quick suggestion