From what I remember, you can not turn off the reflection directly but you can mod the style ini file to adjust the reflection, in picture below I offset the reflection to -200. hence no reflection. You can play other setting to get the idea.
As for the blur-behind. It work just fine on my Windows 7 system. Not sure how it look on Windows 10 since I do not run ODock on my Win10 system.
Stardock Community Assistant