These are gross amounts. The new contract is at least 10% improved, salary wise. The basic should be around 125k euro for a full time spanish Captain, and 68k-ish for a SFO, to be pro-rated depending on the part time contract (8/4 or 9/3). Plus sector payments, loyalty pay and other bonuses. Taxation depends on a lot of things, many variables and tax considerations in Portugal and Spain.
Of course you can change base, if you are keen to move you can expect max 1 year on a seasonal base, and move somewhere else, depending on your license and rights to work in another country.
SFO starts at 2500 factorized hours, but if you join as FO (with let's say 2300 hours) you need at least 24 month in the company to move to the SFO payscale.