Its nice to see Shadow Shrike have different versions depending if the caster is a monster, male player or female player, though this feature doesn't apply the rest of the other shadow transformation spell which is sad to hear. I think this feature should have been applied to all shadow transformation spell as it would show shadow forms have character as well shadow forms don't all look the same. Seeing the different features between Shadow Shrike have and every other shadow transformation spell have feels bit off and limited. I have looked at some art work done by wizard101 official artist for Shadow Magic, it shows there was more to the shadow forms that the game have and haven't included into the game yet. Every Shadow transformation spell deserves better.
Each Shadow Self spell actually does have a different appearance depending on the player's chosen gender. On Shadow Sentinel and Shadow Seraph those changes are slightly more subtle and might not be immediately noticeable when seeing them for the first time, but last I checked there is a difference.