Nice config. U have a HitmanPro License,right? If u want extra protection u can download and install HitmanProAlert for exploit protection,encryption and other usefull futures. U can activate it with ut hitmanpro license,too.
1) You may consider multi engine based like SecureAplus or Crystal Clear to incorporate very well to your Comodo Firewall which more to focus on BB, HIPS and sandbox.
2) Consider additional browser in case of problems occur.
3) Conduct system image backup with the use of built in feature of WIndows or third party program like Macrium Reflect or others.
4) Always to have a software like Virtualbox to conduct malware testing in virtual machine or use sandbox based from Comodo or separate like Sandboxie.