Just in case you didn't notice the differences between my Fursona when He is Happy or Terrified.
On the right side of your screen, you can see my fursona when He is happy, which is also his kind of normal and usual state; while on the left side of your screen you can see My fursona When He is in a kind of a Terrified state...

It's almost impossible to see Him like this since He only gets this look while He feels his life is in real danger.

Ofc His Eyes does not change its color, My fursona's eyes are just heterochromatic, which means that one of his eyes is Light blue while the other is light green. (see His latest Refsheet)

So what changes can you see on Him when He is terrified?
Apart from His accelerated heartbeat and adrenaline running in his blood, you would be able to see 3 main visible changes:

1) His Retractile Black Claws, which are retractile in both hand-paws and feet-paws
2) His feline style eyes, His eyes only become like this when terrified, they don't change form because of sunlight
3) There is a chance his fur becomes spiky (just like cats' fur when they're about to fight)

This is basically how my fursona looks like when He is Feeling Terrified and/or in Panic, so He only looks like this when He actually feels that His entire life is in Danger, and/or when he just woke up from a terrible realistic nightmare.

Why does he only look like this when he is Terrified?
- Well, Although my fursona indeed can show his claws and/or change his pupils' form on purpose, he prefers not to because he feels that His eyes look uglier in that way and he also feels that showing his claws is as disrespectful as showing your middle finger.

//......................

And Once Again I must say that:
The Background in those draws were indeed not made by me. The background is a small fragment of one of Robin Tran's Astonishing ArtWorks.

In the second place, I must also mention that the original Linework of my fursona in this draw was not made by me either... The Lineart originally was a FanArt given to me by "AlbinoWorld" (Another Mexican friend of mine)

I never uploaded the original FanArt because it misused my fursona's colors... and I didn't want to create a sort of confusion around my fursona... so instead of uploading the Original FanArt, I edited and recolored the whole Thing and finally added that borrowed background (Which I also edited a little bit in order to give sort of a "panic" effect or something like)

hope nobody gets mad at me

Sd// The FanArt was given to me really long time ago, but recoloring and editing I managed somehow to make My fursona look more accordingly to its up-to-date Refsheet (That's why I upload this draw in the "February 2021" folder)