All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
We have no means to receive these pictures; however, you can orally ask a scholar about your question and show him these pictures, so that he could decide whether or not they represent a cross. Yet, you should know that not every two crossing signs represent a cross or take the same Sharee'ah ruling of the cross. For example, the addition sign in mathematics is not exactly similar to the cross. That is because the cross, from the Christians’ point of view, refers to a crucified man, and thus is made of two crossing pillars: one of them is vertical while the other is horizontal, taking into account that the higher part of vertical pillar is shorter than the lower, which is actually the most common form used by Christians.
Allah knows best.