So you’re going to make eevee for the final week then? Pretty cool! 🙂 You’re Melvin was very good so I think you will do great!
I found a video on YouTube on how to animate eevee in Blender, perhaps it will help you determine how to sculpt eevee? In the video it looks like the fur around the neck is attached to the rest of the body, as far as my inexperienced eyes can tell. Haven’t watched the whole video though it’s pretty long.
https://m.youtube.com/watch?v=naomDEgyr8Q
Also there are a couple of eevee models on sketchfab, maybe studying them will help?
Hope this helps!