Turner is fine for now but be prepared for him to lose his place soon as they have another GK they bought waiting in the wings. Turner has done ok so should survive a little longer
I like the defense. Dunno if Tsimikas will 100% play all games but you got enough cover there for sure so no worries.
I would not have Mbeumo personally, he is the weak link in your attack. He might do well against Burnley and has pens so not end of the world but without Toney AND Henry, Brentford look to be in trouble going forward. If you have the funds, would make sense to upgrade him.
You might also want to consider an arsenal attacker with the fixtures they have upcoming, especially Sheffield. One is definitely a must.
A solution could be to downgrade Watkins to Alvarez and upgrade Mbeumo to one of Martinelli/Odegaard/Saka (reverse order of my preference).
Apart from that, I would have a team like this if I was using WC right now.