That's a fine bassline. It's doing everything a bassline should do - holds the groove, establishes the chord, and most importantly, keeps TIME and locks in with the drummer. It's a great line to play for any verse or solos over the rhythm section. Only nit picky recommendation is the 5th at the end is a little underwhelming, heh.
Once you start to feel more comfortable with the fretboard you can play with it even more. Just make sure to study your blues chords (obviously 1-IV-V in this case) and you'll start to realize where the good note choices are. Which aside from any tasty approach or chromatic fills will be your root, 3rd, 5th, and 7th generally. Keep practicing and have fun. You have great time which means you're off on the right foot to becoming a proper bass player.
