I have pals that want me to learn Russian. I started trying to learn it. It's really really hard.
Maximilian is coo I think. Sometimes when I'm first introducing myself to someone, I'll say my name's Maximilian. It's funny to see the reaction 'cause of course they're not going to question me about it.. who are they to say my name's not Maximilian.. so I'll wait a few moments and say nah, just kidding, I'm Arthur. One time, I went on a few hours without telling my real name.. so I was called Arthur the whole time. Felt odd.
Had a parakeet ages ago, that I named "Max." Max Tweety Clean I named him. Mr. Clean for short. I was odd at naming pets and things. Still am.
If you want to use a Russian name, let me suggest "Lev.." First name of the scientist that invented the Theremin! Yeee haaaa