Even though Giftiz featuring temporarily brought some players to the game, it's not enough. I have finished 3/4 of the levels I wanted. Summer, Autumn and Winter seasons are done. I only finished it because some people actually asked for it on Facebook :)
I will focus on other games now and possible on other frameworks. AndEngine is not bad for a start, but it is not very well maintained and hardly updated nowadays. I will create one more game in AndEngine just because I have an idea that I want to make it quickly, but after that I will move to other libraries. There's plenty of them to choose from...
Link to Google Play Store
Some screenshots from the winter level: