Newbie here. Twelve hours ago I painted a 1:1 mix of primer and thinner onto the three parts shown using the brush, primer and thinner shown. In case the primer-thinner ratio needs to be exact, I should mention that my ratio probably wasn't exact at all since I found it's really hard to measure out the thinner. (I will buy pipettes.) Where did I go wrong, or is it supposed to look like this?