There is another leaked image of the Glottkin, that I think shows him off a little better. It looks to come from a poster similar to what we saw with the Maggot Lords (shown above). Of course the best views we get of the new models come from the Games Workshop videos showcasing new releases. Its just too bad they wait so long to reveal these.
Here is a link to The Workshop Yila where Angel shows us the latest pics found on the internet.
Credit comes from a Twitter feed, Arthurius11, and aracerssx.