Halldóra was first introduced to watercolours when she was 4 years old and her grandfather gave her the first set of watercolours which kindled her interest. She has spent time on her art in the the US, Italy and in Iceland. Halldóra has widely held courses and exhibitions.
Her paintings can be found in private collections in Iceland, Italy, Canada, USA and Denmark
Solo exhibitions
2007 Heilsugæslan Sólvangi, Hafnarfjörður
2014 Vinnustofa Garðatorgi, Garðabær
2014, Menningarhús Ölfus
2015 Vinnustofa Garðatorgi, Garðabær
2016 Opin vinnustofa ,,Flæði,, Garðabær
2018 Opin vinnustofa ,,Landslag,, Garðabær
2023 Netsýning og opin vinnustofa, Hafnarfirði
2024 Netsýning og opin vinnustofa, Hafnarfirði
​
Group exhibitions
1992 Flensborg, Hafnarfjörður
1993 TCC, Tulsa Oklahoma, USA
1996 Garðatorg, Garðabær 1996
1997 Fjölbrautarskólinn í Garðabæ, Ga