Soner hello,
on this forum, for newcomers, we ask for a small presentation.
Then it is useless to ask the whole question in the title of the message.
The cage must be at least 90/100 cm in length and space must be left in the middle for the bird to fly. Height is less important if the bird can live more than 1.3 m above the ground.
What I see is too small.
This size of cage (90/100) is on condition that he goes out one to two hours a day. (not just weekends)
Look on the ads for used cages. In good condition (no rust) it is 50% of the new price. For a first cage is it the right solution because often we change afterwards.
BUT the main thing is that he has a companion.