Nice model. I bet the chain could have been difficult. I love the contrasting rims. This could be the sort of thing that helps a bike designer visualise colours (like you have) graphics and componentry. Great details. Have you heard of the term HDRI lighting? It could be a way of helping realism, if that's the style you're after. People pay for these models (you may know) and there are a limited number of bike models on the web.