by style from culture- vague phrase that I don't understand
working experiences by- experience in
Most unique for sales kits- no reference- what is uniqe? Also, don't modify unique with most
being and combination between practical and networking- delete 'being' and I am afraid that I don't see the connection between 'practical'and 'networking'
I would say that all of these points need rewriting as they are not very clear and have no punch- they should be short, clear and to the point
Marketing skill on the spot- what spot? On site??
This may be a matter of personal taste, but I think there's too much at the start before I get to the parts that interest me. There are three sentences, then a list of skills before I get to your work experience. I would condense this part.