The most challenging maps for you.

Aslan, next time, please don't upload maps to the internet that are already there! :) Podarok_2001, Jedi Story, and Ivanhoe are available on HeroesPortal: http://heroesportal.net/maps.php There are also many maps on http://www.maps4heroes.com/heroes3/maps.php and http://www.celestialheavens.com/search2.php If the map is already there, a link is sufficient. And on this forum, you can directly attach an image, map, etc., to the message (in extended mode), and you don't need to worry about Deposit and the like.
The Ivanhoe map: http://heroesportal.net/maps.php?search=Ivanhoe It seems to be based on Walter Scott's novel. Maybe I'll give it a try...

a scenario, in Russian, despite the title and description.

You are mistaken here: everything is in English! I specifically exported the text to a file to make sure. There is no Russian text there.
As for Jedi Story: I liked it because the insane enemy armies can still be defeated (and even with almost no losses), even though it seems impossible. But to do this, you need to patiently accumulate archangels, approach the enemies with a large mana reserve, and find the most optimal combat tactic in each case.
I already have "First Blood" 2.4: I downloaded it when I saw reviews about it, but I haven't started playing it yet: I don't like impossible challenges.