It is not so simple.
IPSec traffic selectors will not allow passing any traffic except negotiated, therefore only traffic between 192.168.33.0/24 and 192.168.44.0/24 can pass through the site-to-site connection.
To make your life easier, I would recommend using VTI (on both sides of the IPSec) if possible - in this case, everything will work as with a regular interface (OpenVPN, etc.).
If VTI is not possible, you need to add more networks to your local traffic selector - increase a network range or add more tunnels.
Also, as a workaround, a NAT for traffic from/to 192.168.44.0/24 can be configured.