Definitely agree with what James has said, especially regarding the variation of the sizes of the slider images, given that all of the content below the slider budges whenever the second slider image appears. I'll be reading a preview of one of the blog posts on the index, and then suddenly everything moves. You've got the blockchain assets image scaled to 630x350px, so the Microsoft logo needs to be scaled to that size as well.
I'm not familiar with the style you are using, but I'd like to see you using a slider with the ability to toggle between the slides. When you have more than 1-2 blog posts on the slider, it's going to be a little annoying when you have to wait like a minute for the slider to restart again. WordPress has lots of great slider plugins, so if you can get one working with your style, it's definitely worth the investment.
As James said, your About page is pretty basic. I think you definitely need to expand that. It's definitely a great start though. I think that description of your blog would serve as an excellent mission statement. In your header, you also have a link to Facebook, which links to an actual Facebook account. I'm confused why you didn't make an actual Facebook page or group for the blog?
In your Useful Links in the footer, I think it would look better if you capitalized the "us" in "Contact us." You have "Terms of Service" and "Privacy Policy" with that kind of capitalization, so I assume it would make sense to also have "Contact Us." I think that would keep things consistent, but maybe I'm wrong. Finally, the favicon looks kind of strange from my end. I see the icon in your logo on a white background with the typical 16x16 size, but the icon isn't centered on the favicon. It looks like the icon is being cut off at the top, and then there's plenty of white space below the icon at the bottom. Perhaps that's just an issue on my end?