Logo too small. Help!

Site URL: https://www.robertdelucainc.com/

I created a logo in Canva and have tried resizing it several times there (current size is 1500 x 1500).  When I click on it and open it on my computer it is large and exactly what I'm looking for.  However, as you can see on the website, when I import it into the header it seems to shrink.  I would like it to be a prominent part of the homepage and would adjust the layout of the header to have it in the middle if I could just get it to be larger!!  I am using version 7.1 and already adjusted the logo height to its max of 150px.  What am I doing wrong.  Thank you for your help I greatly appreciate it.

Add this to Design > Custom CSS

.header-title-logo img {
    max-height: 250px;
}

Thanks @tuanphan - really need this today :)