my players use ice_crystal.. and my and players screen....

Sorry, I don’t understand what you mean…

When I use an ice crystal, then all the players that are next to me on the screen have this thing, which is higher in the screenshot.

What is that thing? Does it appear when you use any other Mowzie’s Mobs items? What other mods do you have installed?

no, only on an ice crystal. I use Optifine, Twilight Forest, Abnormals mods, FerriteCore.

I can tell from the screenshot that you have other mods. I need to see a full mods list.

Do any of these mods display the third person player model while you are in first person? Like, if you look down, can you see your legs?

No. Please note that there was no such thing on versions mowziesmobs-1.5.19.

++++1 bug in the piggy bank, I found 1 more bug, if you take an axe of a thousand metals and cut wood, after that he will not be able to use his skill on the PCM, you need to change the axe slot in the inventory.

This new bug you've reported is incorrect. The axe cannot use its ability because the weapon cooldown is reset when you break a block. Unfortunately, there seems to be a bug with vanilla MC that does not display this cooldown after breaking a block.
You simply need to wait for the brief cooldown to end.

As for your main issue, I still cannot tell what I am looking at in that screenshot. Is that your player skin? Is that another mob? A video would really help.