I love the new alpha creatures (shaleback, crocodile, etc). My suggestion/feedback is to remove the glowing eyes of the alpha creature and return them to having normal eyes.
Our clan has more fun being surprised by the fact that there is an alpha in the group after we start attacking the creatures. We live for the “OH SHOOT!” moments and feel that tipping us off that it is an alpha by seeing the glowing eyes removes that element of surprise that we like.
It makes us be more cautious when approaching a group of let’s say shalebacks.