Annoying girlquila and Tsundereeren from Smilo!
That trademark smirk though :D
Conversation open to interpretation but probably something about eating or going outside or "Can I try that machine? Please?"
Perhaps she is praising him :O
She's obviously trying to solve a problem by suggesting ice-cream, silly!
Probably! It freezes your brain and then it works better. Like cooling down your PC.
Love it. Animated and emotional in marker.
Yep! Looks really cool in that style. Kinda like an old cartoon but that is how the author draws in general so check his stuff if you want to :)