When you mean HitmanPro, you mean HitmanPro.Alert? If not, it should be listed in on-demand scanners instead of realtime protection. Also, is the realtime protection for MBAM premium on?
Consider adding another on-demand scanner like Zemana Anti-Malware. Nice config.
Your config is good after you add another on-demand scanner, but consider looking into an anti-executable such as NVT EXE RADAR Pro, APPGUARD, ReHIPS, etc. Otherwise, thanks for sharing your config.
You should move Hitman Pro to the "on-demand" section, as it is not realtime protection. If you are using the realtime in Malwarebytes premium, you may want to move it under Avira in your realtime protection. What method of password management do you currently use?
Extensions: You may add Password manager like Lastpass for Opera or use Adguard extension for better blocking advertisement capabilities.
For security: Hitman Pro is on demand scanner to kindly replace to proper category; you may have a companion based AV like SecureAplus or Crystal Security to enhance your Avast!.