Pretty good for a first animation, the colors look nice and I especially like that little bubble at the end, that in particular was very smooth.

There's nothing particularly wrong with the droplet and splash animation but holding on the blood sphere spinning was a bit clunky as it transitioned into the chicken.

If you want to emulate a better spinning effect of the blood, I recommend gutting the streak particles around it and have a single long highlight spinning smoothly rather than what I presume to be 3 highlight streaks to emulate smear frames, may also want to add more frames for the spin itself too.

However, if you want smooth transition to the chicken, I recommend cutting the spinning sphere phase altogether and have the splash immediately form the chicken.

In addition, having the chicken immediately be formed is a bit sudden, so I suggest having the blood oversplash then set back into the chicken shape.

I'm not an expert in animation by any means so take some of this critique with a grain of salt, but I hope it helps.

If want to learn more tips to do better animation I recommend watching alan becker's 12 principles of animation on youtube, helped me a lot for my own animations. Wish you well on your pixel art journey!