First of all - Nice job. Overall it looks good.
Couple of pointers -The yellow line seems a bit glossy. I would try and tone it down with a flat coat. It also seems a bit clean, no scuff, scid marks at all. I would drybrush on some skid marks. You can also make a very thin wash with black paint and thinner and drip it on in appropriate locations for oil/fuel spills.

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