Acceptable Gas Usage of Smart Contract functions

Perhaps you might wanna share your code with us so we can see if 92k for Registration and 177k for Project Creation whether it is worth. It all depends on what kind of logic you need to happen, the more code and state changes you add the higher the gas price will be.

However I wrote article where I compare the gas price when dealing with some basic logic like working with strings, arrays, conditions and so on. You can check it out here - https://www.linkedin.com/pulse/solidity-smart-contracts-how-gas-greedy-miroslav-nedelchev/

I don't think there are standards about gas-usage of functions, and it wouldn't make sense, except for maybe functions part of standards like ERC20 or ERC773.

Without code, it's hard to tell if it's acceptable or not. It's up to you to try to minimise the writing from zero to non-zero in storage, which is expensive, try to reduce the use of expensive operations, etc...

You can use Remix to test that: http://remix.ethereum.org/

Just paste your contract in place of the default one you will see. Your contract will be compiled automatically. On the right side choose "Run" tab, then choose JavaScript VM for environment and deploy your contract with "Create" button. Buttons allowing to interact with your contract's functions will apear below.

Trigger the function you want to test and in the middle section of the page, at the bottom, you will see info if your transaction succeeded and two buttons: "Details" and "Debug". Click "Details" and there you will find what was the gas cost of your transaction.

Image below shows how to find this window with "Details" and "Debug" if it is not visible by default.