Hi OP here. Thank you so much for everyone who's taking the time to give feedback. You have all given me lots of things to think about, and to improve on, I can't thank you all enough!

It's getting late here in Australia so I'm going to have to call it a night. I'll respond to the comments I haven't responded to over the weekend.

And I will for sure add some screenshots to the landing page, as many of you have suggested.

EDIT: Updated the landing page with some screenshots. Will try to perfect it more over the weekend...