That’s an amazing idea, I’d like to second this as a request. Probably should add it to the Feature Requests category for consideration to add to Seek or iNat Next, etc. This would really add a lot of value for not much effort, especially for new and infrequent users.
Photography tips and on-boarding of some type are sorely needed, and a feature that provides real-time tips on what to photograph would go a long way towards that goal.