Yes, multiple, three stayed with us for more than a year and are mentioned in Credits.
Initially, we asked them to do things "realistically", but not looking too brand new. Eventually, we had a good set of models that we could use as a style reference. We had to redo some models that were not fitting the style and we still have a list of models to improve.
One thing that we learned early is that all models need to have a common scale, otherwise details like doors look bad when scaled differently on each model. We have established a metric system, each tile in game is 2x2 m, all railings are 1m tall, all doors are 2m, etc.
Now we have a doc with all our notes regarding style and rules that we share with new artists.
Initially, we asked them to do things "realistically", but not looking too brand new. Eventually, we had a good set of models that we could use as a style reference. We had to redo some models that were not fitting the style and we still have a list of models to improve.
One thing that we learned early is that all models need to have a common scale, otherwise details like doors look bad when scaled differently on each model. We have established a metric system, each tile in game is 2x2 m, all railings are 1m tall, all doors are 2m, etc.
Now we have a doc with all our notes regarding style and rules that we share with new artists.