K Rend problems

[concept]

Just finished my first K Render in white. The finish is not consistent and has light and dark patches, the powder was mixed with clean water every time. Can anyone tell me what I've done wrong?

 

[Olican]

Just finished my first K Render in white. The finish is not consistent and has light and dark patches, the powder was mixed with clean water every time. Can anyone tell me what I've done wrong?

Stick some pictures up to get better advice bud

 

[zombie]

Just finished my first K Render in white. The finish is not consistent and has light and dark patches, the powder was mixed with clean water every time. Can anyone tell me what I've done wrong?

All bags from same batch?

 

[Complete]

Just finished my first K Render in white. The finish is not consistent and has light and dark patches, the powder was mixed with clean water every time. Can anyone tell me what I've done wrong?

Did you scratch it all when it was at the same set point? Early and late scratches alter the texture and shade