Definitely an improvement, it's shaping up. If you ever feel up for working on it some, I have a few suggestions that you can take as you will. Firstly, run some punctuation and capitalization checks into it. That way, people will be more inclined to take it into consideration. I know if I saw two guides side by side, I'd be more tempted to read into a guide with good set-up over a guide that has sparse punctuation.
Next, add a few map locations and map-based strategies, such as those certain spots that mines are great for. Take a picture of the maps off the Awesomenauts wiki and throw some circles to show good places to have mines, or good spots for Yuri to be to escape upwards easily and other useful things like that.
Also, possibly a section that outlines what enemy Nauts you should be wary of and which are easy pickings for Yuri. I know the mines can clean Froggy and other low-HP Nauts right up, and I also know that Derpl will not pose much of a problem against mines and the bubble for escaping his nukes. That kind of an outline would be great for beginners wanting to give Yuri a go.
Keep in mind all of those are just suggestions to grow the guide a bit, allowing new players to take more from it than older players and that they're just a few ideas to help out, I'm definitely not criticizing the guide, just trying to help.
