I saw the 1990 IT and yet to see the 2017 edition. In the 1990 the clown is a duplicate of old Bozo the clown (look a like) and in your photo of IT in 2017 It looks like a resurrection (pet cemetery like) death warmed over version of Bozo IT. thanks for the review as I found it intriguing.
I prefer Bill Skarsgard as Pennywise but it's fairly close, if you liked the 1990 version you'll like the 2017 version, it's definitely worth a watch!