I don't understand anatomy or scales so sorry this is kind of ugh.

I just wanted to show what the back end of my fursona Kafrik looks like. The light blue patch on his back is scales that blend into a small bit of fur of the same color, and that blue fur blends into his red fur (since I can't draw that well use your imagination). The spines jut out of the scaled area. The spines faintly glow blue and glow brighter when hes agitated.
Same glowing pattern goes for the stripes on his tail. The fur along most of his back and tail is thinner than the rest, revealing bony ridges particularly around his tail. (He has fairly short fur in general, only being thick around his neck).

To give you a better idea of what I was going for, here is his uncolored feral image by stranillafennebi on FA

• https://www.weasyl.com/character/35845 And his front view colored image sketched by Kavodragon and lined/colored by me
• https://www.weasyl.com/character/33195/kafrik-art-by-kavodragon

Kafrik is mine, artwork here is mine (Now you see why I commission people instead of drawing him myself)

Edit: He has two wings I just was drawing this to show his back so I didn't bother with wing number 2

Also upon looking back at this, he needs one more spine up closer to his neck frick.