It would be even better if you also posted screenshots here. Some places are difficult to explain in words. What do you think?))
What can I say... Go ahead and post them; the rules don't forbid it. Just try to reduce their size using Photoshop, especially since the forum doesn't support the standard resolution of screenshots from Heroes 5, and you'll have to rename them anyway.
I'm personally going through the campaign very slowly due to a lack of time. I've only completed 1-4 so far...