las palmas is a team that is on fire 
yes their recent performance is pretty good because as small team they could survive in the middle of standings league and only could lost 2 times and even in the beginning of league they could reach 1st positions even that wasn't last long and regarding their match tomorrow i dare to pick for Las Palmas winMoreover Espanyol is not a strong contender still the same as last season unable to compete this season I doubt Espanyol in La Liga
Just like you I also agree las palmas win perhaps by a margin of 2 goals. For a safer bet Draw No Bet Las Palmas @1.53 I think the odds are not bad