Yes the main pyramid is a logical attempt but for the other two their are multiple solution. The first hint could be that here are 3 pyramids in total.
if not...C1R4 is the start of one this should be sufficient..
Arleta, when you create a hanjie, there is a button you can push to test the puzzle before you submit it. Please test your hanjies before you post them. If you can't complete them by the numbers alone (pretending you don't know what the finished puzzle looks like), it is not logical and should not be submitted.