User blog comment:Xyclone010/Next Ultimate Skin/@comment-3391671-20180125055622/@comment-24862418-20180125141134

Thank you for your reply.

For Maokai case, the reason why his surrounding is not visible to the enemy because it would hint enemies a Maokai is hiding somewhere nearby. This is why and maybe  can tell where they are before you can see them. I think that same reason is why enemies cannot see surrounding raven as it is a cosmetic feature, not a gameplay one. What do you think? Should enemies allowed to see the terrain feature.

Oh, and aI dont know, if this skin is a thing, how Riot would manage with 2 Ultimate Maokai Skin as they may have 2 different season.

And for Evelynn, it is a more blend in than a disguise. Evelynn, after all, takes the form of a young lady, which she is not. In this skin, the lady form just changes with addition outfit that fits the region where enemies come from. Then again, being an invisible assassin, Evelynn should be recognized-able when she exits stealth. A Bilgewater Evelynn can be mistaken to be a friendly Miss Fortune does not have good clarity.