1st attempt at the avatar using the image you provided:
Can change anything about this, (Make background flat color / different, change the animation, add effects, brighten / darken, Add name on picture etc.)
1st attempt at the signature. I created this render (no one can use this or find it on google), and can make changes to it of course just dont want to spend more time if you're uninterested. So if you like what you see and want me to take it further please let me know!
Just went for a simple popout vibe on this one, can make the popout style higher quality (unsure if you like popouts so didnt want to go in detail with it yet)
Or I can make it a typical sig that has borders etc.
LMK