As the title says, this the evolution of Felix, my fursona, for over three years, with quite some changes, which i'm gonna explain next (the dates are when i got the art of each one):

Originally, my fursona started as a silhouette of a haired wolf with a hoodie on, the main idea behind this is that my fursona was supposed to be mysterious, as he'd always wear his hoodie no matter what, the only visible parts would have a white fur, this was also, before i got the first drawing that can be seen on the image.

That came later from a request that i asked, however, it was a sketch so it had no colors at first, those were added a couple of months ago, after a friend of mine through discord sent a bunch of color palettes, i ended up liking one of them and so i took the colors from it, hence why the first version of Felix has a scale of green only.

Not many months after i wanted to redo it again, as i was not too comfortable with the colors my sona had back then, so i took a base and colored it while also adding the goggles to it, making the hair black, the eyes orange and the orange fur around the eyes, the base is not shown here, but it was the inspiration for the second art. I asked one of my friends to do it and it stayed like that for a long time. Then, i found a website that does colored bases, and i wanted to try it, eventually crossing with one that made fursonas, and the result? the third art shown, i pretty much liked it and it stayed as my pfp for so long.

At the beginning of the 2022 i got my first reference sheet, which also brought the shark tail with it, and on May of the same year i did another re-design, the stripes on the arms and legs along with the orange fur on the shoulders and the tip of the tail, and one month later i found this artist whose art-style was very much alike to the base i did, and i wanted to get a fresh version of it, this art is the fourth one. the months passed, and i had the desire to redo the tail, i had to clarify this as it was a separate thing from the reference sheet back then, now, moving to 2023, the current year, last month i did my latest (and possible final) redesign, and since i didn't have that many artist with the new design, i had to get one, ending up with the fifth art.

As it can be seen, my sona has gone through some changes, starting from an edgy wolf to a green shark wolf x3

And lastly, to give credits:
The first one was made by  RushRabbit (the non-colored version)
Second one was done by  ART3k,
The third one was made from this website
The fourth one i got it from this artist on facebook
And finally, the fifth one was from  Katie_Hollowkat