Here are two cool walking-bass lines on a B-flat Blues – I really enjoy the melodic descending line in the last two bars on walking 1. The descending line starting from C on walking 2 is also really cool!
Try it out for yourself – and obviously compose and transcribe your own lines!
Walking 1:
Walking 2:
Hopefully these lines are useful to you and you can find inspiration in them! 🙂