It is safe but you should be careful enough not to tell anyone that you are travelling all alone.I believe the place will be safe but now a days nothing is safe for women we should be careful with each and everything.
Yes it is.
it is braj bhumi. girls are always get resect their. during holi festival u got lots of solo travlers . u'll find indians , nris , and non indians too. u ll have lots of fun there. just go for it.