The Lions are an extremely lucky football team. What team wouldn't want a lion as their mascot? It is arguably one of the coolest mascots. Part of what makes the Detroit Lions so cool is their classical take on the lion. It is designed more like a sigil than a photorealistic lion, like something a knight would wear. I am glad the artist decided to keep the integrity of that design.
That being said, these designs are overall far too tame to be very indistinguishable from each other. The top right is essentially just the class helmet but with some color changes. The same is true for the bottom right as well. The bottom left seems to be the most radical shift in design, but that is solely because of the lion logo being larger.