I hate New 52 Harley's look so much. Bruce Timm's original design is way more iconic. I'm sure they could've pulled off the look but the DCCU is heavily based off the New 52 and TDKR so that's kinda unfortunate. I always thought Bruce Timm had a FANTASTIC understanding of the DC Universe but oh well.
When he left the DC animation department, I was hoping that'd mean he (and Paul Dini) was getting moved to oversee the DCCU. But alas, DC really loves their New 52 reboot (for better or worse).