Bless looks weird because a glowing worm is flying around your characters' faces. Other buff spells look annoying too.
It's a niche thing I wanted to bring up after Patch 4, but the effects like Hex, Mage Armor, Bless, etc. all don't look that great.
Hex making my character glow red, Mage Armor making my character glow yellow...
Essentially, Buff/Debuff animations can be improved if they're lacking in oomph factor.
Also they have the option to buff Bless to a 2d2 or 1d6, that'd be healthier for the game than advantage being everywhere.
