Can I withdraw to Skrill?
Yes, Skrill is one of the payout methods.

Payments · Skrill
Skrill keeps your casino budget apart from your everyday account. Top up Winzon from the wallet from NZ$20. Winnings return to the same wallet.
18+18+ only. Set your deposit limit before the first spin.
E-wallet in the Winzon cashier.
Skrill
Top up with Skrill and send winnings back to it; your first deposit opens the welcome package.
18+ · Welcome package terms at Winzon.
Skrill handles deposits and payouts, so winnings return to the place your deposits came from and you follow both in one account.
Load a set amount into Skrill for the month and play only from that wallet. Your everyday bank account stays out of the casino.
Use a Skrill account in the same name as your Winzon profile, so deposits and payouts match the identity you confirmed at verification.
Fund the account and spin:
pay with Skrill at Winzon.
Quick answers
Yes, Skrill is one of the payout methods.
Log in to Skrill in the pop-up and confirm the amount.
Popular e-wallets count; the cashier notes any promotion that leaves a method out.