The banjo n entry #24 is not a 5 string bluegrass banjo. Entry #4 has someone playing a cello - definately NOT a bluegrass instrument. Same comment re banjo - no 5th string peg on neck. #3 not bad. Bass could be larger so it doesn't look so much like a cello.
Thanks for feedback - my husband is the bluegrass fan in my family - should have asked him...! hope this is more to your liking. I think the loose illustration style kind of reflects the nature of that sound.