Bad outputs in self-made real world datasets

[Seagullflysxt]

Hi!Thanks for your great work!
I captured about 90 pictures(360°） around an object like this(removed background manualy in photoshop):

and get the c2w metrics from directly from colmap
render a static scene using syn.config,but the results are very bad:


Could you please give me some advices about where could go wrong

And I tried dtu dataset scan83,the output fine.obg is very odd like this:

It is nothing like the scene and the size of ckpt.npz of this scene is about 1.3GB, more less than your provided ckpt.npz of scan83,could you tell me how to get the resonable output?