Need additional mixing to 5 songs (and one intro)

I just finished mixing my new EP. It consists of 4 pop-rock genre songs, a one-minute intro and an acoustic version. The mix seems decently done to me, but I would like to have it "reviewed" by a second mix engineer. I can provide stems already complete with effects or the whole project, because my producer also uses pro-tools. Let's assume that I like the mixes so I would only ask you for a quick review or changes in case you hear something that can be greatly improved. I will share with you the link to listen to the tracks (these versions have already been mastered) Please let me know what you think and also what the cost would be. Kind regards Umberto

Additional info:
I'm looking to hire a top pro who's worked on hit songs, and have the budget for that. I don't have a hard deadline for this. The tracks are cleaned, tuned, and and the song is ready to be mixed. The song has less than 10 tracks recorded that need mixing. I'm an indie artist. . I'm going to hire a different mastering engineer.