Totally get what you're saying, I was pretty disappointed with those shots too based on the lighting, my camera just couldn't handle the light. All in all I think it's kinda obvious that I'm shooting on a 6 year old camera, the quality just isn't as good as what you get nowadays. It struggles with auto-focus throughout the video too.
I think eventually I'll have to invest in a newer camera, might have to sell my soul though!
Thanks for the the input though! Glad you like the riding.