One of the critical part in Logo Tracing work is tracing or drawing the image in detail. In this Trace Logo job, the lion is the hardest part. If the source image given is not clear enough, we will definitely cannot produce the vector tracing as perfect as it should be.
Then finding the correct fonts used are also not an easy thing here, you may end up with tracing the fonts as well.. things that designer or illustrator trying to avoid. Another hours might be needed to complete the job.