Holy frick frack dude your art is totally rad!! (Im also glad you like gravity falls, almost none of the blogs I follow Post gravity falls related stuff!!)
NO U, YOU ARE RAD. ;u; Thank you so much!
Oh my biscuits, we need to fix that. May I suggest following cherryviolets and purplethinks? They post a lot of grand GF-related art and things. There’s also the official Gravity Falls blog ( gravi-teamfalls ), chrishoughtonart ( who was a character designer/storyboard revisionist on the show ), and the amazing joedrawsstuff ( who does LOTS of awesome things ).
There are plenty of other blogs out there, but those are the ones that flashed into my mind first. :)