It seems that you sold your ETH in USDT market and not in BTC. In the image you provided, it's clear that the market is
USDT-ETH, which means you sold 0.20632300 ETH in exchange of USDT at the rate of 723.51916068. If you check your
Balance, you'll see 148.90544718 USDT and 0 BTC.
BTC-ETH is the correct market if you want to get BTC from your ETH
PS. If you want to exchange your USDT to BTC proceed to
USDT-BTC market