As mentioned below, graphics is quite bad. You doesn't have to make own assets and in this case, it would be better if you rather took some already finished free assets. In case you create your next game in Unity, there is a lot of free assets in their UnityStore (like hundreds of free assets - https://assetstore.unity.com/) or you can visit https://www.cgtrader.com/free-3d-models/architectural for free assets etc. For free textures, I will reccomend you: https://polyhaven.com/textures and https://www.textures.com/library ). It seem you also have a problem with mapping textures correctly (so either don't use textures which needs mapping and use simple colors or you may want to watch some tutorials on "UV mapping" and "unwrapping models"). I appreciate that you did a game alone, but I cannot give you good rating, bce the game seems shoddy, sorry.