Hi Jerome, as for Antiqua, I can't say much, as we just got in town, and it started pouring down rain for what little time we were there. We went up stairs to do some shopping, and were able to look out at Antiqua, and what we could see, looked pretty good, and it was warm, with the heavy downpour of rain.
We would probably have checked it out further, but my friend fell and hurt herself pretty bad, so we had to go back to the ship.
As for Tortola, BVI, it is a small island just being discovered these past few years.
As my friend wasn't able to do much walking, I left her in an area, where she could sit down, and walked back to the straw markets (we had taken a taxi with a few other people to get to the main hub). Actually the straw markets aren't too far from the ship, and there are so many of them "crammed" together, selling most of the same thing. You can get T-shirts for $5, or I believe 4 for $10 or $15. Very reasonable in price. You may be able to bargain with them also.
It is a small area, and it reminds me somewhat of St. Lucia, which is MORE than beautiful. It has high mountains to look out and see the beauty, and well as the low valleys.
Hope this helps a little.