I can't add my own website as I've not got a band (or been able to play bass for nearly a year after an operation on my finger ) - I do design and build websites for a living though (and digital strategy/consulting etc - just call me Mr Fancypants ).
Quite a few of the sites posted aren't responsive, i.e. adapt to be viewed correctly on a mobile phone - I'd really recommend you make your sites responsive as most traffic these days is from mobile devices. I know I've googled a band on my phone after seeing them live. Responsive sites also get ranked higher in google searches than non-responsive.
I didn't spot anyone with an email sign up and I think you are missing a trick - if someone cares enough to look at your site, ask them to sign up to an email list! Then you can send out regular (or at least semi-regular) emails with gig/tour dates and remind people that you are avalible for booking etc. People who have actively signed up are far more likely to turn up to your gigs, and you don't just have to rely on the venue promoting either. Is super easy and cheap too! The two I'd recommend are MailChimp (has a free tier up to 2000 subscribers) - https://mailchimp.com, and Campaign Monitor (https://www.campaignmonitor.com/b/). Both super easy to get started and cheap promotion compared to printing flyers.
Hope thats helpful to someone. Give me a yell if you have any questions. And good luck with getting those gigs!