Replica review:
>> Core stage is just one bit too tall. It is 22 m, and it should be 21.5 (21.39 for the real GSLV).
>> Upper stage is one bit too tall too. It is 14 m, and it should be 13.5 (13.545 for the real GSLV).
>> Your entire rocket is 46 m tall and the real GSLV is 43.43 (which you can round to 43.5).
That is all. Enjoy the rest of your day.