Hi .. I am glad to know about you . I am sorry i dont have much ideas about mobile gaming But if you are aware of pixel painting ( 64 by 128 pixels ) then definetely u will get a chance there as texturing artist where as modelling needs to be improved with low poly models

and If u dont have an idea abt that I think you should reffer tuts and ur friends its not tough but lil practice would be needed

I am sure u will definetly find a way if u dedicate urslf in this lil bit .. I hope i cleared your doubts abt this ..