English for Russian (Madrid or Skype)

Hello all. I'm an Irish guy living and working in Madrid with some free time in July/August. I have been studying Russian on-and-off for a few months independently and would like to exchange my English (native)/Spanish (C1) for some short, informal lessons or tips on how to progress. Free to meetup in Madrid city or even via Skype. I'm an experienced & qualified English trainer also; so most if not all topics I can help with.