Your priest will be the one to put some finality to this question.
Also, your priest can advise you about which icons would be good in your icon corner. I would think you would want, at a minimum, Christ, the Mother of God, and your patron saint. Also, you should ask your priest to bless your icons the next time you are able to visit your church. I would assume the Ethiopians have that custom. It exists in the Armenian Church. Are you able to e-mail your priest? I would try to contact him before your next visit, so you know ahead of time if you should bring your icons to be blessed by him. At my church, you can ask the priest to put your icons on the altar during the liturgy. That is one way of blessing them.