Hello Friend! As you can see I'm Brazilian, but coincidentally I have a representative of my company in Kiev ...
I am a partner in a video production company in Rio de Janeiro, and I have a team of professional experts on all Adobe tools, including After Effects, as you said you need to.
I also have designers, animators, modellers and editors. We have ability with Cinema 4d, Maya, Adobe Fuse, Adobe Dimension, and Maya.
We work very well with VFX, I have in my portfolio some examples that you can see.
I would like to propose a partnership in the distance, an initial test with the minimum value that I offered, however, I will have a representative who can assist you and bridge the gap between you and the rest of the team, who may be in person in your office.
Call me on the chat for more details, and do not hesitate to rate my portfolio!