Cave Rocks and my first attempt to marketplace

Hello guys do you think I have a chance on marketplace to get this project approved? It’s my first attempt with 3D models on marketplace I released music only before. Do you think that this looking interesting enough or should I work more on that assets? All models are unwrapped so there are only material instances without master materials, do you think it’s a good practice or bad, additionally I covered texture seams in substance painter with some alphas to make them look better, but still after 10 days of constant work 12 hours a day I have hard times to evaluate my own project. I’m new in unreal so my scenes and lighting setup may look bad but I still want to improve. Thanks for any opinions, here are some screenshots. Best regards, Marcin Klosowski