I only had my first leg booked but reading this I just made all the other reservations within an hour, does it look right? thanks guys

8/26-9/7 VNO-IST-GRU-SCL round trip (does this check both Europe and South America or I have to get another ticket for EU?)
9/10 RIX-IST-CGK (Asia)
9/21 CGK-IST-CAI (Africa)
9/26 CAI-IST-SYD (Oceania)
10/3 SYD-FCO (reposition myself)
10/25 VCE-IST-MIA (North America)