Some things I noted:

• Default entity model size should be 5, otherwise it is just too big
• The squids appear a lot larger than other models; while I am using a resource pack it seems like a problem with this mod
• As you can see on the VoxelMap, the entity heads are better highlighted if they have an outline, please add an option for that.

JustMap vs VoxelMap:

The outline for icons add via 0b0c552, but disabled by default.

Done dd36ae3