I need help with a overlay or something

regarding the overlay:

if you can work in some picture editing program like photoshop you can do it by yourself - if you do not know how to do that you can ask in some art shop on the forum. - or some peeople might have it on their drives but I dont know who has them.

You just need to printscreen of the character and cut the hand in the elbow (usually) and make the background translucent.

Like this:

If this one works for you you can use it.

Then you will upload it to your portal here:

and you will animate it - the animation of overlays is explained in detail here: