very nice indeed !
Take a closer picture of the pivot point on the lower cylinder - like to see how you attached to the ram.
Is there a reason that you put it on the outside of the lift arm and not on the inside? I have seen something like that somewhere else using PVC pipe, but yours seems to be a cleaner look. Very nice job, I'll have to look at doing something like that. A lot better than $75 for the one that Kubota sells. Thanks for sharing!
Haven't used a FEL with a level indicators, so excuse my ignorance:
Does the indicator indicate level only when the bucket is close to the bottom position?