Письмо другу в present perfect

Hi Kate! I haven't received letters from you for a long time. How are you? Have you already come back from your journey? I am visiting my friend in Poltava now. I have been here for a week already. We have already seen many interesting places and I have taken some wonderful pictures. But we haven't been to the local Planetarium yet. Have you ever visited a Planetarium? I think it will be great. Recently I have visited the Historical Museum and Art Gallery. And I have just bought a very interesting present for you. I hope we will meet soon. Your friend Ann.